Listed

Fuel Tech, Inc.

FTEKNasdaqCIK 846913IndustrialsFiscal year ends Dec 31

Standardized line items from XBRL company facts, the last twelve quarters. Negative values are in parentheses. A figure marked d is derived from year-to-date figures.

Income statement

Revenue$6.5m, Q2 FY2026
Operating income−$1.6m, Q2 FY2026
Net income−$1.2m, Q2 FY2026
Fuel Tech, Inc., income statement, quarterly
Line itemUnitQ3 FY20232023-09-30Q4 FY20232023-12-31Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30
Revenue$k7,988Revenue, Q3 FY2023, three months to 2023-09-30$8.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure6,345Revenue, Q4 FY2023, three months to 2023-12-31$6.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure4,957Revenue, Q1 FY2024, three months to 2024-03-31$5.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure7,042Revenue, Q2 FY2024, three months to 2024-06-30$7.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure7,851Revenue, Q3 FY2024, three months to 2024-09-30$7.9m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure5,283Revenue, Q4 FY2024, three months to 2024-12-31$5.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure6,382Revenue, Q1 FY2025, three months to 2025-03-31$6.4m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure5,558Revenue, Q2 FY2025, three months to 2025-06-30$5.6m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure7,490Revenue, Q3 FY2025, three months to 2025-09-30$7.5m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure7,247Revenue, Q4 FY2025, three months to 2025-12-31$7.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure6,080Revenue, Q1 FY2026, three months to 2026-03-31$6.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure6,485Revenue, Q2 FY2026, three months to 2026-06-30$6.5m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Cost of revenue$k4,376Cost of revenue, Q3 FY2023, three months to 2023-09-30$4.4m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure3,102Cost of revenue, Q4 FY2023, three months to 2023-12-31$3.1m. XBRL concept us-gaap:CostOfRevenue. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure2,928Cost of revenue, Q1 FY2024, three months to 2024-03-31$2.9m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure4,090Cost of revenue, Q2 FY2024, three months to 2024-06-30$4.1m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure4,444Cost of revenue, Q3 FY2024, three months to 2024-09-30$4.4m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure3,048Cost of revenue, Q4 FY2024, three months to 2024-12-31$3.0m. XBRL concept us-gaap:CostOfRevenue. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure3,423Cost of revenue, Q1 FY2025, three months to 2025-03-31$3.4m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure3,029Cost of revenue, Q2 FY2025, three months to 2025-06-30$3.0m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure3,829Cost of revenue, Q3 FY2025, three months to 2025-09-30$3.8m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure4,013Cost of revenue, Q4 FY2025, three months to 2025-12-31$4.0m. XBRL concept us-gaap:CostOfRevenue. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure3,436Cost of revenue, Q1 FY2026, three months to 2026-03-31$3.4m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure3,810Cost of revenue, Q2 FY2026, three months to 2026-06-30$3.8m. XBRL concept us-gaap:CostOfRevenue. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Gross profit$k3,612Gross profit, Q3 FY2023, three months to 2023-09-30$3.6m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure3,243Gross profit, Q4 FY2023, three months to 2023-12-31$3.2m. XBRL concept us-gaap:GrossProfit. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure2,029Gross profit, Q1 FY2024, three months to 2024-03-31$2.0m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure2,952Gross profit, Q2 FY2024, three months to 2024-06-30$3.0m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure3,407Gross profit, Q3 FY2024, three months to 2024-09-30$3.4m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure2,235Gross profit, Q4 FY2024, three months to 2024-12-31$2.2m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure2,959Gross profit, Q1 FY2025, three months to 2025-03-31$3.0m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure2,529Gross profit, Q2 FY2025, three months to 2025-06-30$2.5m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure3,661Gross profit, Q3 FY2025, three months to 2025-09-30$3.7m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure3,234Gross profit, Q4 FY2025, three months to 2025-12-31$3.2m. XBRL concept us-gaap:GrossProfit. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure2,644Gross profit, Q1 FY2026, three months to 2026-03-31$2.6m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure2,675Gross profit, Q2 FY2026, three months to 2026-06-30$2.7m. XBRL concept us-gaap:GrossProfit. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Research and development$k513Research and development, Q3 FY2023, three months to 2023-09-30$513.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure367Research and development, Q4 FY2023, three months to 2023-12-31$367.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure376Research and development, Q1 FY2024, three months to 2024-03-31$376.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure422Research and development, Q2 FY2024, three months to 2024-06-30$422.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure361Research and development, Q3 FY2024, three months to 2024-09-30$361.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure405Research and development, Q4 FY2024, three months to 2024-12-31$405.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure570Research and development, Q1 FY2025, three months to 2025-03-31$570.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure490Research and development, Q2 FY2025, three months to 2025-06-30$490.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure450Research and development, Q3 FY2025, three months to 2025-09-30$450.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure504Research and development, Q4 FY2025, three months to 2025-12-31$504.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure524Research and development, Q1 FY2026, three months to 2026-03-31$524.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure646Research and development, Q2 FY2026, three months to 2026-06-30$646.0k. XBRL concept us-gaap:ResearchAndDevelopmentExpense. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Selling, general and administrative$k2,966Selling, general and administrative, Q3 FY2023, three months to 2023-09-30$3.0m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure3,677Selling, general and administrative, Q4 FY2023, three months to 2023-12-31$3.7m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure3,345Selling, general and administrative, Q1 FY2024, three months to 2024-03-31$3.3m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure3,245Selling, general and administrative, Q2 FY2024, three months to 2024-06-30$3.2m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure3,225Selling, general and administrative, Q3 FY2024, three months to 2024-09-30$3.2m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure3,946Selling, general and administrative, Q4 FY2024, three months to 2024-12-31$3.9m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure3,341Selling, general and administrative, Q1 FY2025, three months to 2025-03-31$3.3m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure3,347Selling, general and administrative, Q2 FY2025, three months to 2025-06-30$3.3m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure3,207Selling, general and administrative, Q3 FY2025, three months to 2025-09-30$3.2m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure4,155Selling, general and administrative, Q4 FY2025, three months to 2025-12-31$4.2m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure3,716Selling, general and administrative, Q1 FY2026, three months to 2026-03-31$3.7m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure3,594Selling, general and administrative, Q2 FY2026, three months to 2026-06-30$3.6m. XBRL concept us-gaap:SellingGeneralAndAdministrativeExpense. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Operating income$k133Operating income, Q3 FY2023, three months to 2023-09-30$133.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure(801)Operating income, Q4 FY2023, three months to 2023-12-31−$801.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure(1,692)Operating income, Q1 FY2024, three months to 2024-03-31−$1.7m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure(715)Operating income, Q2 FY2024, three months to 2024-06-30−$715.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure(179)Operating income, Q3 FY2024, three months to 2024-09-30−$179.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure(2,116)Operating income, Q4 FY2024, three months to 2024-12-31−$2.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure(952)Operating income, Q1 FY2025, three months to 2025-03-31−$952.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(1,308)Operating income, Q2 FY2025, three months to 2025-06-30−$1.3m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure4.0Operating income, Q3 FY2025, three months to 2025-09-30$4.0k. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure(1,425)Operating income, Q4 FY2025, three months to 2025-12-31−$1.4m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure(1,596)Operating income, Q1 FY2026, three months to 2026-03-31−$1.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(1,565)Operating income, Q2 FY2026, three months to 2026-06-30−$1.6m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Interest expense$k5.0Interest expense, Q3 FY2023, three months to 2023-09-30$5.0k. XBRL concept us-gaap:InterestExpense. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure6.0Interest expense, Q4 FY2023, three months to 2023-12-31$6.0k. XBRL concept us-gaap:InterestExpense. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure0.0Interest expense, Q1 FY2024, three months to 2024-03-31$0. XBRL concept us-gaap:InterestExpense. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure0.0Interest expense, Q2 FY2024, three months to 2024-06-30$0. XBRL concept us-gaap:InterestExpense. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure0.0Interest expense, Q3 FY2024, three months to 2024-09-30$0. XBRL concept us-gaap:InterestExpense. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure0.0Interest expense, Q4 FY2024, three months to 2024-12-31$0. XBRL concept us-gaap:InterestExpense. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figurenot reportednot reportednot reportednot reportednot reportednot reported
Income tax$k0.0Income tax, Q3 FY2023, three months to 2023-09-30$0. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure69.0Income tax, Q4 FY2023, three months to 2023-12-31$69.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure11.0Income tax, Q1 FY2024, three months to 2024-03-31$11.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure6.0Income tax, Q2 FY2024, three months to 2024-06-30$6.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure1.0Income tax, Q3 FY2024, three months to 2024-09-30$1.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure59.0Income tax, Q4 FY2024, three months to 2024-12-31$59.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure0.0Income tax, Q1 FY2025, three months to 2025-03-31$0. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure4.0Income tax, Q2 FY2025, three months to 2025-06-30$4.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure7.0Income tax, Q3 FY2025, three months to 2025-09-30$7.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure4.0Income tax, Q4 FY2025, three months to 2025-12-31$4.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure(1.0)Income tax, Q1 FY2026, three months to 2026-03-31−$1.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure10.0Income tax, Q2 FY2026, three months to 2026-06-30$10.0k. XBRL concept us-gaap:IncomeTaxExpenseBenefit. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Net income$k459Net income, Q3 FY2023, three months to 2023-09-30$459.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure(539)Net income, Q4 FY2023, three months to 2023-12-31−$539.0k. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure281Net income, Q1 FY2024, three months to 2024-03-31$281.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure(421)Net income, Q2 FY2024, three months to 2024-06-30−$421.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure80.0Net income, Q3 FY2024, three months to 2024-09-30$80.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure(1,883)Net income, Q4 FY2024, three months to 2024-12-31−$1.9m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure(739)Net income, Q1 FY2025, three months to 2025-03-31−$739.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure(689)Net income, Q2 FY2025, three months to 2025-06-30−$689.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure303Net income, Q3 FY2025, three months to 2025-09-30$303.0k. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure(1,199)Net income, Q4 FY2025, three months to 2025-12-31−$1.2m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure(1,355)Net income, Q1 FY2026, three months to 2026-03-31−$1.4m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure(1,230)Net income, Q2 FY2026, three months to 2026-06-30−$1.2m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Diluted EPS$ per share0.01Diluted EPS, Q3 FY2023, three months to 2023-09-30$0.01 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figurenot reported0.01Diluted EPS, Q1 FY2024, three months to 2024-03-31$0.01 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure(0.01)Diluted EPS, Q2 FY2024, three months to 2024-06-30−$0.01 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure0.00Diluted EPS, Q3 FY2024, three months to 2024-09-30$0.00 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figurenot reported(0.02)Diluted EPS, Q1 FY2025, three months to 2025-03-31−$0.02 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(0.02)Diluted EPS, Q2 FY2025, three months to 2025-06-30−$0.02 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure0.01Diluted EPS, Q3 FY2025, three months to 2025-09-30$0.01 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figurenot reported(0.04)Diluted EPS, Q1 FY2026, three months to 2026-03-31−$0.04 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(0.04)Diluted EPS, Q2 FY2026, three months to 2026-06-30−$0.04 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Basic EPS$ per share0.02Basic EPS, Q3 FY2023, three months to 2023-09-30$0.02 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figurenot reported0.01Basic EPS, Q1 FY2024, three months to 2024-03-31$0.01 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure(0.01)Basic EPS, Q2 FY2024, three months to 2024-06-30−$0.01 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure0.00Basic EPS, Q3 FY2024, three months to 2024-09-30$0.00 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figurenot reported(0.02)Basic EPS, Q1 FY2025, three months to 2025-03-31−$0.02 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(0.02)Basic EPS, Q2 FY2025, three months to 2025-06-30−$0.02 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure0.01Basic EPS, Q3 FY2025, three months to 2025-09-30$0.01 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figurenot reported(0.04)Basic EPS, Q1 FY2026, three months to 2026-03-31−$0.04 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(0.04)Basic EPS, Q2 FY2026, three months to 2026-06-30−$0.04 per share. XBRL concept us-gaap:EarningsPerShareBasic. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure

Balance sheet

Cash and equivalents$7.6m, Q2 FY2026
Shareholders' equity$37.4m, Q2 FY2026
Fuel Tech, Inc., balance sheet, quarterly
Line itemUnitQ3 FY20232023-09-30FY20232023-12-31Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30
Cash and equivalents$m13.5Cash and equivalents, Q3 FY2023, at 2023-09-30$13.5m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2023-11-07, accession 0001437749-23-030663.Report this figure17.6Cash and equivalents, FY2023, at 2023-12-31$17.6m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2025-03-04, accession 0001437749-25-006116.Report this figure11.4Cash and equivalents, Q1 FY2024, at 2024-03-31$11.4m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure10.4Cash and equivalents, Q2 FY2024, at 2024-06-30$10.4m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure12.3Cash and equivalents, Q3 FY2024, at 2024-09-30$12.3m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure8.5Cash and equivalents, FY2024, at 2024-12-31$8.5m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-K filed 2026-03-03, accession 0001437749-26-006623.Report this figure11.8Cash and equivalents, Q1 FY2025, at 2025-03-31$11.8m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure10.6Cash and equivalents, Q2 FY2025, at 2025-06-30$10.6m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure13.7Cash and equivalents, Q3 FY2025, at 2025-09-30$13.7m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure11.9Cash and equivalents, FY2025, at 2025-12-31$11.9m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure9.1Cash and equivalents, Q1 FY2026, at 2026-03-31$9.1m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure7.6Cash and equivalents, Q2 FY2026, at 2026-06-30$7.6m. XBRL concept us-gaap:CashAndCashEquivalentsAtCarryingValue. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Current assets$m37.3Current assets, Q3 FY2023, at 2023-09-30$37.3m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2023-11-07, accession 0001437749-23-030663.Report this figure38.3Current assets, FY2023, at 2023-12-31$38.3m. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2025-03-04, accession 0001437749-25-006116.Report this figure32.2Current assets, Q1 FY2024, at 2024-03-31$32.2m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure30.3Current assets, Q2 FY2024, at 2024-06-30$30.3m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure30.9Current assets, Q3 FY2024, at 2024-09-30$30.9m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure29.6Current assets, FY2024, at 2024-12-31$29.6m. XBRL concept us-gaap:AssetsCurrent. 10-K filed 2026-03-03, accession 0001437749-26-006623.Report this figure29.1Current assets, Q1 FY2025, at 2025-03-31$29.1m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure31.0Current assets, Q2 FY2025, at 2025-06-30$31.0m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure32.0Current assets, Q3 FY2025, at 2025-09-30$32.0m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure31.9Current assets, FY2025, at 2025-12-31$31.9m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure27.2Current assets, Q1 FY2026, at 2026-03-31$27.2m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure25.0Current assets, Q2 FY2026, at 2026-06-30$25.0m. XBRL concept us-gaap:AssetsCurrent. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Total assets$m50.3Total assets, Q3 FY2023, at 2023-09-30$50.3m. XBRL concept us-gaap:Assets. 10-Q filed 2023-11-07, accession 0001437749-23-030663.Report this figure50.4Total assets, FY2023, at 2023-12-31$50.4m. XBRL concept us-gaap:Assets. 10-K filed 2025-03-04, accession 0001437749-25-006116.Report this figure49.4Total assets, Q1 FY2024, at 2024-03-31$49.4m. XBRL concept us-gaap:Assets. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure49.0Total assets, Q2 FY2024, at 2024-06-30$49.0m. XBRL concept us-gaap:Assets. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure50.1Total assets, Q3 FY2024, at 2024-09-30$50.1m. XBRL concept us-gaap:Assets. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure48.8Total assets, FY2024, at 2024-12-31$48.8m. XBRL concept us-gaap:Assets. 10-K filed 2026-03-03, accession 0001437749-26-006623.Report this figure46.7Total assets, Q1 FY2025, at 2025-03-31$46.7m. XBRL concept us-gaap:Assets. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure47.0Total assets, Q2 FY2025, at 2025-06-30$47.0m. XBRL concept us-gaap:Assets. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure47.9Total assets, Q3 FY2025, at 2025-09-30$47.9m. XBRL concept us-gaap:Assets. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure47.2Total assets, FY2025, at 2025-12-31$47.2m. XBRL concept us-gaap:Assets. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure44.5Total assets, Q1 FY2026, at 2026-03-31$44.5m. XBRL concept us-gaap:Assets. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure43.2Total assets, Q2 FY2026, at 2026-06-30$43.2m. XBRL concept us-gaap:Assets. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Current liabilities$m5.4Current liabilities, Q3 FY2023, at 2023-09-30$5.4m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2023-11-07, accession 0001437749-23-030663.Report this figure5.7Current liabilities, FY2023, at 2023-12-31$5.7m. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2025-03-04, accession 0001437749-25-006116.Report this figure4.5Current liabilities, Q1 FY2024, at 2024-03-31$4.5m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure4.5Current liabilities, Q2 FY2024, at 2024-06-30$4.5m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure5.3Current liabilities, Q3 FY2024, at 2024-09-30$5.3m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure5.9Current liabilities, FY2024, at 2024-12-31$5.9m. XBRL concept us-gaap:LiabilitiesCurrent. 10-K filed 2026-03-03, accession 0001437749-26-006623.Report this figure4.3Current liabilities, Q1 FY2025, at 2025-03-31$4.3m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure5.3Current liabilities, Q2 FY2025, at 2025-06-30$5.3m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure5.9Current liabilities, Q3 FY2025, at 2025-09-30$5.9m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure6.3Current liabilities, FY2025, at 2025-12-31$6.3m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure5.0Current liabilities, Q1 FY2026, at 2026-03-31$5.0m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure4.9Current liabilities, Q2 FY2026, at 2026-06-30$4.9m. XBRL concept us-gaap:LiabilitiesCurrent. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Total liabilities$m6.2Total liabilities, Q3 FY2023, at 2023-09-30$6.2m. XBRL concept us-gaap:Liabilities. 10-Q filed 2023-11-07, accession 0001437749-23-030663.Report this figure6.7Total liabilities, FY2023, at 2023-12-31$6.7m. XBRL concept us-gaap:Liabilities. 10-K filed 2025-03-04, accession 0001437749-25-006116.Report this figure5.5Total liabilities, Q1 FY2024, at 2024-03-31$5.5m. XBRL concept us-gaap:Liabilities. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure5.4Total liabilities, Q2 FY2024, at 2024-06-30$5.4m. XBRL concept us-gaap:Liabilities. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure6.3Total liabilities, Q3 FY2024, at 2024-09-30$6.3m. XBRL concept us-gaap:Liabilities. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure6.8Total liabilities, FY2024, at 2024-12-31$6.8m. XBRL concept us-gaap:Liabilities. 10-K filed 2026-03-03, accession 0001437749-26-006623.Report this figure5.3Total liabilities, Q1 FY2025, at 2025-03-31$5.3m. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure6.3Total liabilities, Q2 FY2025, at 2025-06-30$6.3m. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure6.9Total liabilities, Q3 FY2025, at 2025-09-30$6.9m. XBRL concept us-gaap:Liabilities. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure7.2Total liabilities, FY2025, at 2025-12-31$7.2m. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure5.9Total liabilities, Q1 FY2026, at 2026-03-31$5.9m. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure5.8Total liabilities, Q2 FY2026, at 2026-06-30$5.8m. XBRL concept us-gaap:Liabilities. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure
Long-term debt$mnot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reported
Current portion of debt$mnot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reported
Short-term borrowings$mnot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reported
Shareholders' equity$m44.1Shareholders' equity, Q3 FY2023, at 2023-09-30$44.1m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure43.7Shareholders' equity, FY2023, at 2023-12-31$43.7m. XBRL concept us-gaap:StockholdersEquity. 10-K filed 2026-03-03, accession 0001437749-26-006623.Report this figure44.0Shareholders' equity, Q1 FY2024, at 2024-03-31$44.0m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure43.6Shareholders' equity, Q2 FY2024, at 2024-06-30$43.6m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure43.9Shareholders' equity, Q3 FY2024, at 2024-09-30$43.9m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure42.0Shareholders' equity, FY2024, at 2024-12-31$42.0m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure41.4Shareholders' equity, Q1 FY2025, at 2025-03-31$41.4m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure40.7Shareholders' equity, Q2 FY2025, at 2025-06-30$40.7m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure41.0Shareholders' equity, Q3 FY2025, at 2025-09-30$41.0m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure39.9Shareholders' equity, FY2025, at 2025-12-31$39.9m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure38.6Shareholders' equity, Q1 FY2026, at 2026-03-31$38.6m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure37.4Shareholders' equity, Q2 FY2026, at 2026-06-30$37.4m. XBRL concept us-gaap:StockholdersEquity. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure

Cash flow

Operating cash flow−$894.0k, Q2 FY2026
Capital expenditure$77.0k, Q2 FY2026
Fuel Tech, Inc., cash flow, quarterly
Line itemUnitQ3 FY20232023-09-30Q4 FY20232023-12-31Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30
Operating cash flow$k374Operating cash flow, Q3 FY2023, three months to 2023-09-30$374.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2024-11-06, accession 0001437749-24-033640. Derived: 9-month figure less the 6-month figure.Report this figure305Operating cash flow, Q4 FY2023, three months to 2023-12-31$305.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure(1,075)Operating cash flow, Q1 FY2024, three months to 2024-03-31−$1.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure(1,589)Operating cash flow, Q2 FY2024, three months to 2024-06-30−$1.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-08-05, accession 0001437749-25-024873. Derived: 6-month figure less the 3-month figure.Report this figure879Operating cash flow, Q3 FY2024, three months to 2024-09-30$879.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-04, accession 0001437749-25-033043. Derived: 9-month figure less the 6-month figure.Report this figure(1,648)Operating cash flow, Q4 FY2024, three months to 2024-12-31−$1.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure1,508Operating cash flow, Q1 FY2025, three months to 2025-03-31$1.5m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(21.0)Operating cash flow, Q2 FY2025, three months to 2025-06-30−$21.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-04, accession 0001437749-26-025711. Derived: 6-month figure less the 3-month figure.Report this figure3,096Operating cash flow, Q3 FY2025, three months to 2025-09-30$3.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-04, accession 0001437749-25-033043. Derived: 9-month figure less the 6-month figure.Report this figure(1,567)Operating cash flow, Q4 FY2025, three months to 2025-12-31−$1.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure(847)Operating cash flow, Q1 FY2026, three months to 2026-03-31−$847.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure(894)Operating cash flow, Q2 FY2026, three months to 2026-06-30−$894.0k. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-04, accession 0001437749-26-025711. Derived: 6-month figure less the 3-month figure.Report this figure
Capital expenditure$k98.0Capital expenditure, Q3 FY2023, three months to 2023-09-30$98.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2024-11-06, accession 0001437749-24-033640. Derived: 9-month figure less the 6-month figure.Report this figure217Capital expenditure, Q4 FY2023, three months to 2023-12-31$217.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-K filed 2025-03-04, accession 0001437749-25-006116. Derived: 12-month figure less the 9-month figure.Report this figure114Capital expenditure, Q1 FY2024, three months to 2024-03-31$114.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure90.0Capital expenditure, Q2 FY2024, three months to 2024-06-30$90.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2025-08-05, accession 0001437749-25-024873. Derived: 6-month figure less the 3-month figure.Report this figure112Capital expenditure, Q3 FY2024, three months to 2024-09-30$112.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2025-11-04, accession 0001437749-25-033043. Derived: 9-month figure less the 6-month figure.Report this figure62.0Capital expenditure, Q4 FY2024, three months to 2024-12-31$62.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure65.0Capital expenditure, Q1 FY2025, three months to 2025-03-31$65.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure36.0Capital expenditure, Q2 FY2025, three months to 2025-06-30$36.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2026-08-04, accession 0001437749-26-025711. Derived: 6-month figure less the 3-month figure.Report this figure130Capital expenditure, Q3 FY2025, three months to 2025-09-30$130.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2025-11-04, accession 0001437749-25-033043. Derived: 9-month figure less the 6-month figure.Report this figure443Capital expenditure, Q4 FY2025, three months to 2025-12-31$443.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-K filed 2026-03-03, accession 0001437749-26-006623. Derived: 12-month figure less the 9-month figure.Report this figure322Capital expenditure, Q1 FY2026, three months to 2026-03-31$322.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure77.0Capital expenditure, Q2 FY2026, three months to 2026-06-30$77.0k. XBRL concept us-gaap:PaymentsToAcquireProductiveAssets. 10-Q filed 2026-08-04, accession 0001437749-26-025711. Derived: 6-month figure less the 3-month figure.Report this figure
Share repurchases$knot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reportednot reported

Shares

Diluted shares (weighted)31.18m, Q2 FY2026
Fuel Tech, Inc., shares, quarterly
Line itemUnitQ3 FY20222022-09-30Q1 FY20232023-03-31Q2 FY20232023-06-30Q3 FY20232023-09-30Q1 FY20242024-03-31Q2 FY20242024-06-30Q3 FY20242024-09-30Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q1 FY20262026-03-31Q2 FY20262026-06-30
Diluted shares (weighted)m shares30.4Diluted shares (weighted), Q3 FY2022, three months to 2022-09-3030,371,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2023-11-07, accession 0001437749-23-030663.Report this figure30.3Diluted shares (weighted), Q1 FY2023, three months to 2023-03-3130,296,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2024-05-07, accession 0001437749-24-015111.Report this figure30.3Diluted shares (weighted), Q2 FY2023, three months to 2023-06-3030,324,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2024-08-06, accession 0001437749-24-024919.Report this figure30.6Diluted shares (weighted), Q3 FY2023, three months to 2023-09-3030,627,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2024-11-06, accession 0001437749-24-033640.Report this figure30.8Diluted shares (weighted), Q1 FY2024, three months to 2024-03-3130,756,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-05-12, accession 0001437749-25-016135.Report this figure30.5Diluted shares (weighted), Q2 FY2024, three months to 2024-06-3030,482,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-08-05, accession 0001437749-25-024873.Report this figure30.8Diluted shares (weighted), Q3 FY2024, three months to 2024-09-3030,848,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure30.7Diluted shares (weighted), Q1 FY2025, three months to 2025-03-3130,718,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure30.9Diluted shares (weighted), Q2 FY2025, three months to 2025-06-3030,868,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure31.3Diluted shares (weighted), Q3 FY2025, three months to 2025-09-3031,293,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2025-11-04, accession 0001437749-25-033043.Report this figure31.1Diluted shares (weighted), Q1 FY2026, three months to 2026-03-3131,091,335 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-05-05, accession 0001437749-26-014907.Report this figure31.2Diluted shares (weighted), Q2 FY2026, three months to 2026-06-3031,181,000 shares. XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure

Shares outstanding: 31.22mShares outstanding, period not labelled, at 2026-07-3131,216,789 shares. XBRL concept dei:EntityCommonStockSharesOutstanding. 10-Q filed 2026-08-04, accession 0001437749-26-025711.Report this figure at Jul 31, 2026, from the cover of the 10-Q filed Aug 4, 2026.

Source: SEC EDGAR, XBRL company facts. Last ingested by Listed: Oct 24, 2026, 15:25 ET. Listed shows no prices and gives no investment advice.