# CSX Corp: overview

CSX · Nasdaq · CIK 277948 · [Industrials](/sectors/industrials.md) · fiscal year ends Dec 31

Pages: [Overview](/companies/csx.md) · [Financials](/companies/csx/financials.md) · [Filings](/companies/csx/filings.md) · [Insiders](/companies/csx/insiders.md)

Latest reported revenue: [$4.02bn](/filings/0000277948-26-000040.md) for Q3 FY2026, three months to 2026-09-30, from the 10-Q filed Oct 21, 2026 (XBRL us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax, accession 0000277948-26-000040).

## Last eight quarters

| Line item | Unit | Q4 FY2024 (2024-12-31) | Q1 FY2025 (2025-03-31) | Q2 FY2025 (2025-06-30) | Q3 FY2025 (2025-09-30) | Q4 FY2025 (2025-12-31) | Q1 FY2026 (2026-03-31) | Q2 FY2026 (2026-06-30) | Q3 FY2026 (2026-09-30) |
| --- | --- | ---: | ---: | ---: | ---: | ---: | ---: | ---: | ---: |
| Revenue | $m | [3,539 d](/filings/0000277948-26-000006.md) | [3,423](/filings/0000277948-26-000014.md) | [3,574](/filings/0000277948-26-000032.md) | [3,587](/filings/0000277948-26-000040.md) | [3,508 d](/filings/0000277948-26-000006.md) | [3,482](/filings/0000277948-26-000014.md) | [3,935](/filings/0000277948-26-000032.md) | [4,017](/filings/0000277948-26-000040.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [31.3% d](/filings/0000277948-26-000006.md) | [30.4%](/filings/0000277948-26-000014.md) | [35.9%](/filings/0000277948-26-000032.md) | [30.3%](/filings/0000277948-26-000040.md) | [31.6% d](/filings/0000277948-26-000006.md) | [36.0%](/filings/0000277948-26-000014.md) | [38.3%](/filings/0000277948-26-000032.md) | [39.1%](/filings/0000277948-26-000040.md) |
| Net margin | % | [20.7% d](/filings/0000277948-26-000006.md) | [18.9%](/filings/0000277948-26-000040.md) | [23.2%](/filings/0000277948-26-000040.md) | [19.3%](/filings/0000277948-26-000040.md) | [20.5% d](/filings/0000277948-26-000006.md) | [23.2%](/filings/0000277948-26-000040.md) | [25.5%](/filings/0000277948-26-000040.md) | [26.2%](/filings/0000277948-26-000040.md) |
| Diluted EPS | $ per share | not reported | [0.34](/filings/0000277948-26-000014.md) | [0.44](/filings/0000277948-26-000032.md) | [0.37](/filings/0000277948-26-000040.md) | not reported | [0.43](/filings/0000277948-26-000014.md) | [0.54](/filings/0000277948-26-000032.md) | [0.57](/filings/0000277948-26-000040.md) |
| Free cash flow | $m | [550 d](/filings/0000277948-26-000006.md) | [536](/filings/0000277948-26-000014.md) | [(141) d](/filings/0000277948-26-000032.md) | [607 d](/filings/0000277948-26-000040.md) | [709 d](/filings/0000277948-26-000006.md) | [729](/filings/0000277948-26-000014.md) | [751 d](/filings/0000277948-26-000032.md) | [1,024 d](/filings/0000277948-26-000040.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. Derived values: 12-month figure less the 9-month figure.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. Derived values: 12-month figure less the 9-month figure; 6-month figure less the 3-month figure; 9-month figure less the 6-month figure.

## Last five fiscal years

| Line item | Unit | FY2021 (2021-12-31) | FY2022 (2022-12-31) | FY2023 (2023-12-31) | FY2024 (2024-12-31) | FY2025 (2025-12-31) |
| --- | --- | ---: | ---: | ---: | ---: | ---: |
| Revenue | $bn | [12.5](/filings/0000277948-24-000010.md) | [14.9](/filings/0000277948-25-000008.md) | [14.7](/filings/0000277948-26-000006.md) | [14.5](/filings/0000277948-26-000006.md) | [14.1](/filings/0000277948-26-000006.md) |
| Gross margin | % | not reported | not reported | not reported | not reported | not reported |
| Operating margin | % | [44.7%](/filings/0000277948-24-000010.md) | [40.1%](/filings/0000277948-25-000008.md) | [37.5%](/filings/0000277948-26-000006.md) | [36.1%](/filings/0000277948-26-000006.md) | [32.1%](/filings/0000277948-26-000006.md) |
| Net margin | % | [30.2%](/filings/0000277948-24-000010.md) | [27.7%](/filings/0000277948-25-000008.md) | [25.0%](/filings/0000277948-26-000006.md) | [23.9%](/filings/0000277948-26-000006.md) | [20.5%](/filings/0000277948-26-000006.md) |
| Diluted EPS | $ per share | [1.68](/filings/0000277948-24-000010.md) | [1.92](/filings/0000277948-25-000008.md) | [1.82](/filings/0000277948-26-000006.md) | [1.79](/filings/0000277948-26-000006.md) | [1.54](/filings/0000277948-26-000006.md) |
| Free cash flow | $bn | [3.3](/filings/0000277948-24-000010.md) | [3.4](/filings/0000277948-25-000008.md) | [3.3](/filings/0000277948-26-000006.md) | [2.7](/filings/0000277948-26-000006.md) | [1.7](/filings/0000277948-26-000006.md) |

- Revenue. XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Gross margin (gross profit / revenue). XBRL Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Operating margin (operating income / revenue). XBRL Operating income: us-gaap:OperatingIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Net margin (net income / revenue). XBRL Net income: us-gaap:NetIncomeLoss; Revenue: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax.
- Diluted EPS. XBRL Diluted EPS: us-gaap:EarningsPerShareDiluted.
- Free cash flow (operating cash flow − capital expenditure). XBRL Operating cash flow: us-gaap:NetCashProvidedByUsedInOperatingActivities; Capital expenditure: us-gaap:PaymentsToAcquirePropertyPlantAndEquipment.

Each value links to the filing it came from. d marks a derived value. A ratio is not reported when any input is missing.

## Insider purchases and sales

The last 20 open-market transactions on Form 4 (codes P and S). Reported price is as stated on the form, not a market price. [All insider transactions](/companies/csx/insiders.md)

None in coverage.

## Funds that report holding it

From each manager’s latest Form 13F, largest reported value first. Reported value is as filed: filing data, not a price. [All funds](/funds.md)

| Fund | Quarter ended | Reported value | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | --- | --- |
| [BlackRock, Inc.](/funds/2012383.md) | 2026-06-30 | $7.66bn | 161,062,005 |  | Added +856,970 |
| [VANGUARD CAPITAL MANAGEMENT LLC](/funds/2100119.md) | 2026-06-30 | $5.77bn | 121,371,632 |  | Added +538,577 |
| [STATE STREET CORP](/funds/93751.md) | 2026-06-30 | $4.35bn | 91,455,446 |  | Added +2,429,376 |
| [Invesco Ltd.](/funds/914208.md) | 2026-06-30 | $2.77bn | 58,361,617 |  | Added +38,918,207 |
| [GEODE CAPITAL MANAGEMENT, LLC](/funds/1214717.md) | 2026-06-30 | $2.09bn | 44,162,148 |  | Added +295,878 |
| [VANGUARD PORTFOLIO MANAGEMENT LLC](/funds/2100121.md) | 2026-06-30 | $1.77bn | 37,227,799 |  | Added +663,917 |
| [JPMORGAN CHASE & CO](/funds/19617.md) | 2026-06-30 | $1.74bn | 36,262,181 |  | Reduced −3,392,867 |
| [BANK OF AMERICA CORP /DE/](/funds/70858.md) | 2026-06-30 | $1.60bn | 33,641,111 |  | Reduced −8,520,624 |
| [Fisher Asset Management, LLC](/funds/850529.md) | 2026-06-30 | $1.33bn | 28,042,636 |  | Added +794,989 |
| [MORGAN STANLEY](/funds/895421.md) | 2026-06-30 | $1.24bn | 26,091,964 |  | Added +632,797 |

## Recent filings

[All 1,646 filings](/companies/csx/filings.md)

| Filed | Accepted | Form | What it is | Accession |
| --- | --- | --- | --- | --- |
| 2026-10-21 | 16:02 ET | [10-Q](/filings/0000277948-26-000040.md) | Quarterly report, period 2026-09-30 | 0000277948-26-000040 |
| 2026-10-21 | 16:01 ET | [8-K](/filings/0000277948-26-000039.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000277948-26-000039 |
| 2026-10-13 | 08:00 ET | [8-K](/filings/0000277948-26-000034.md) | 5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits | 0000277948-26-000034 |
| 2026-07-22 | 16:02 ET | [10-Q](/filings/0000277948-26-000032.md) | Quarterly report, period 2026-06-30 | 0000277948-26-000032 |
| 2026-07-22 | 16:01 ET | [8-K](/filings/0000277948-26-000031.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000277948-26-000031 |
| 2026-05-14 | 09:30 ET | [8-K](/filings/0000950103-26-007181.md) | 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 8.01 Other events | 0000950103-26-007181 |
| 2026-04-22 | 16:02 ET | [10-Q](/filings/0000277948-26-000014.md) | Quarterly report, period 2026-03-31 | 0000277948-26-000014 |
| 2026-04-22 | 16:01 ET | [8-K](/filings/0000277948-26-000013.md) | 2.02 Results of operations; 9.01 Financial statements and exhibits | 0000277948-26-000013 |
| 2026-03-30 | 14:08 ET | [DEF 14A](/filings/0001628280-26-021944.md) | Proxy statement, period 2026-05-12 | 0001628280-26-021944 |
| 2026-02-12 | 16:14 ET | [10-K](/filings/0000277948-26-000006.md) | Annual report, period 2025-12-31 | 0000277948-26-000006 |

## Latest annual report

[Form 10-K for the fiscal year ended Dec 31, 2025](/filings/0000277948-26-000006.md), filed Feb 12, 2026.

## Forecast league

Not in this season’s league. [This season’s league](/leagues.md)

## About the filer

- CIK: 277948
- Tickers: CSX
- Exchange: Nasdaq
- SIC code: 4011 Railroads, Line-Haul Operating
- State of incorporation: VA
- Filer category: Large accelerated filer

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 27, 2026, 09:16 ET. No prices; not investment advice.