CSX (CSX) 2025 — Grade F: $675M Cash vs $19.4B Debt, Margins Eroding

Grade: F — Major Red Flags

Framework: Schilit *Financial Shenanigans* + Beneish M-Score + forensic accounting principles

Data: SEC EDGAR 10-K (Filed February 12, 2026, FY ended December 31, 2025) + Yahoo Finance

Auditor: Ernst & Young LLP — Unqualified opinion (1 critical audit matter: depreciation of properties)

One-line verdict: CSX is assigned an F due to a critical structural flag: cash of $675M covers only 3% of $19.4B total debt. This is a capital-intensive railroad running on a leveraged balance sheet by design, not a sign of fraud. The M-Score of -2.63 is clean, CFFO/NI of 1.60 is excellent, and earnings quality is genuinely strong. But the F grade reflects the mechanical reality that CSX has virtually no cash buffer against its massive debt load, combined with a deteriorating earnings trajectory: revenue -3%, operating income -14%, net income -17%, and two consecutive years of goodwill impairment charges ($164M in 2025, $108M in 2024) on its trucking subsidiary. For investors, the key question is whether this is a temporary cyclical trough or a structural margin compression — the 400 basis point operating margin decline from 36.1% to 32.1% deserves serious attention.

A Railroad in Cyclical Decline

CSX is one of North America's Class I freight railroads, operating approximately 20,000 route miles across 26 states and parts of Canada. The 10-K breaks down the revenue story:

The headline: coal revenue collapsed 15%, driven by lower global benchmark rates. Per the filing, coal revenue per unit fell 13% from $3,053 to $2,646, reflecting "the impact of lower global benchmark rates." Coal volume also declined 2%. This single line item accounts for more than three-quarters of the total revenue decline.

Profitability: Margin Compression Across the Board

Per the MD&A, the income statement tells a story of rising costs meeting declining revenue:

The 400 basis point decline in operating margin is the most significant data point. Railroads are fixed-cost businesses with high operating leverage — when volume declines, margins contract disproportionately. Total expense rose 3% while revenue fell 3%, creating a 600bps revenue-cost gap.

Cash Flow: The One Bright Spot

CFFO/NI of 1.60 is excellent and *improving* — cash generation exceeds net income by a wide margin, confirming that reported earnings are real. The high CFFO/NI ratio is typical for railroads due to massive depreciation charges ($1,680M) that are non-cash expenses flowing through the income statement.

However, free cash flow dropped to $1.7B from $2.7B because CapEx rose to $2.9B — a 15% increase. The filing attributes this to ongoing track, bridge, and infrastructure investment. Railroads must invest heavily in physical infrastructure to maintain safety and service quality; this is not discretionary spending.

The FCF decline is the real constraint: with $1.7B in free cash flow, CSX must fund dividends, share buybacks, and debt service. The company repurchased significant shares (average diluted shares fell from 2,013M in 2023 to 1,873M in 2025 — a 7% reduction), and interest expense was $844M. The margin for error is narrowing.

The 18-Point Screening

Revenue Quality

Revenue quality is pristine. DSO of 24 days is extremely low — railroads collect quickly. AR decreased faster than revenue, the opposite of a manipulation signal. The A3 check passes because both revenue and CFFO moved in the same direction; the larger CFFO decline reflects timing differences in working capital, not an earnings quality issue.

Expense Quality

B4 — Gross margin decline warrants context. Gross margin fell from 36.8% to 33.2%, a 360bps compression. For a railroad, "gross margin" is driven by the operating ratio (total expenses divided by revenue). The 2025 operating ratio was 67.9% (vs. 63.9% in 2024). This deterioration reflects the fixed-cost leverage problem: costs are relatively fixed, and when revenue declines, margins compress mechanically.

B2 — CapEx surge. CapEx grew 15% while revenue declined 3%. But for railroads, CapEx is largely non-discretionary — track maintenance, bridge repairs, and equipment replacement are required for safe operations. The filing notes $2.9B in property additions, mostly for track structure and equipment.

Cash Flow Quality

C4 is the critical flag that drives the F grade. Cash and cash equivalents of $675M (plus $5M short-term investments) total $680M against $19.4B in total debt. That is 3.5% coverage — among the lowest of any Nasdaq-100 company.

However, context matters enormously here. CSX is a Class I railroad — an industry where high leverage is structural, not pathological. The filing's balance sheet shows Properties-Net of $36.8B (85% of total assets). These are real, income-producing physical assets: track, bridges, locomotives, freight cars. Railroads carry high debt because they operate regulated, durable monopoly-like infrastructure with predictable cash flows.

The Debt/EBITDA ratio of 3.1x and interest coverage of 5.6x confirm that CSX can service its debt. Interest expense of $844M is well covered by $4.5B operating income. But the mechanical screen flags this as a critical fail because the cash-on-hand provides almost no liquidity buffer in a stress scenario.

Balance Sheet

Goodwill is minimal at $80M — but CSX recorded goodwill impairment charges of $164M in 2025 and $108M in 2024 related to its Quality Carriers trucking subsidiary (see Note 18). Two consecutive years of trucking goodwill impairment is a signal that the trucking acquisition has underperformed expectations. At $267M combined goodwill and intangibles (down from $433M), the remaining exposure is small.

Properties dominate the balance sheet: $53.8B gross, $36.8B net after $17.0B accumulated depreciation. Ernst & Young's critical audit matter was specifically about the depreciation methodology for these properties — a depreciation study conducted by a third-party specialist determines useful lives and salvage values. The auditor noted this was a critical area of judgment.

Acquisition Risk

CSX is not an active acquirer. The goodwill decrease reflects impairment charges, not dispositions. The company generates its returns through operating a legacy railroad network, not through acquisitions.

Manipulation Score

M-Score of -2.63 is clean. The GMI (Gross Margin Index) of 1.107 is the most elevated component, reflecting the margin compression. But this is a cyclical phenomenon, not manipulation. All other components are benign: DSRI 0.942, AQI 0.994, SGAI 0.681 (very low — SG&A is declining relative to revenue), TATA -0.040.

Altman Z-Score: 1.86 (grey zone). Just above the distress threshold of 1.81. The negative working capital component (-0.013) and moderate retained earnings ratio (0.242) reflect the railroad's leveraged capital structure. This is structurally typical for railroads and does not indicate imminent distress.

Key Risks from the 10-K

1. Coal Revenue Structural Decline

Coal revenue fell 15% to $1.9B, driven by lower global benchmark rates and weaker demand. Coal volume declined 2% (718K units vs. 736K), but revenue per unit collapsed 13% from $3,053 to $2,646. The filing warns of continued exposure to "the impact of natural gas prices on coal-fired electricity generation" and "the impact of global supply and price of seaborne coal on CSX's export coal market."

Coal is now only 13% of total revenue (down from ~16% in 2023), but its high-margin nature means the earnings impact is disproportionate. The secular shift away from coal-fired power generation is not reversible.

2. Trucking Subsidiary Impairment — Two Years Running

CSX recorded $164M in goodwill impairment on its Quality Carriers trucking business in 2025, following $108M in 2024. Total: $272M in two years. This acquisition has clearly underperformed its original valuation. The remaining goodwill is small ($80M), limiting future impairment risk, but this is a cautionary tale about diversification acquisitions.

3. Regulatory and Safety Risks

The filing devotes extensive attention to regulatory risk: "legislative, regulatory or legal developments involving transportation, including rail or intermodal transportation, the environment, hazardous materials, taxation, international trade." The Surface Transportation Board (STB) has economic regulatory authority over railroads. The filing warns of potential new regulations that could affect pricing, service, and operations.

The "common carrier mandate" — requiring railroads to accommodate reasonable freight requests including hazardous materials — creates ongoing safety and liability exposure. The filing notes CSX is "subject to, and is likely to continue to be the target of, data breaches, cyber-attacks and other similar incidents."

4. Leverage in a Cyclical Downturn

With $19.4B in debt and only $675M in cash, CSX is heavily leveraged. Interest expense of $844M is a fixed cost that doesn't flex with declining revenue. The 400bps operating margin compression from 36.1% to 32.1% shows how quickly earnings erode when revenue declines in a high-fixed-cost business. If coal continues to decline and merchandise volumes remain soft, the debt burden becomes increasingly heavy relative to cash generation.

5. Tariff and Trade Policy Uncertainty

The Risk Factors cite "the impact of international trade agreements and tariffs" as a key uncertainty. CSX is both a beneficiary (domestic reshoring increases freight demand) and a victim (trade wars reduce export volumes, particularly coal and agricultural products). The filing warns of "changes in domestic or international economic, political or business conditions" affecting demand.

Summary

Grade: F. The cash-to-debt ratio is a critical structural flag, not a fraud signal.

CSX's earnings quality is genuinely strong: CFFO/NI of 1.60, negative accruals, clean M-Score of -2.63, and minimal goodwill. Ernst & Young has served as auditor since 1981 and issued an unqualified opinion. There is no evidence of manipulation or aggressive accounting.

The F grade is driven entirely by the cash-to-debt mechanical screen (3% coverage) combined with the grading algorithm treating this as a critical fail. Investors should understand that this is structurally typical for Class I railroads — CSX has $36.8B in net physical assets backing its $19.4B in debt, and interest coverage of 5.6x is adequate.

The real concern is the earnings trajectory: three consecutive years of revenue decline, 540bps of operating margin compression over two years, two consecutive years of trucking goodwill impairment, and a coal business in structural decline. Free cash flow halved from $3.3B to $1.7B. CSX's franchise value is real — its physical network is irreplaceable — but the current earnings cycle is working against it.