CSX Corporation (CSX) Cash Flow Statement

The OCF/NI ratio has been consistently above 1 in most quarters, suggesting that net income is well-covered by cash generation. However, the Q2 2025 dip to 0.77, driven by a $561 million working capital outflow, highlights the sensitivity of cash conversion to timing of receivables and payables. The subsequent recovery to 1.32 in Q2 2026 implies that the earlier weakness was temporary, but investors should monitor the sustainability of this improvement given the ongoing revenue decline.

The FCF trajectory has been erratic, with a notable negative quarter in Q2 2025 due to a large working capital outflow and elevated capex. The recent rebound to $751 million in Q2 2026 is encouraging, but it is still below the $1.1 billion generated in Q4 2024. The FCF margin of 19.1% is below the peer average of around 25%, suggesting that CSX's capital intensity and working capital needs are higher than its Western peers, which may limit its ability to return cash to shareholders.

CSX's capital intensity is structurally high due to the need to maintain a 19,500-mile network. The recent reduction in CapEx/Rev to 14.6% in Q2 2026 from 21.7% in Q2 2025 suggests a deliberate effort to moderate spending, but this may be at the expense of long-term network reliability. The depreciation charge of $411 million in Q2 2026 is roughly 71% of CapEx, implying that a significant portion of capital spending is for maintenance rather than growth, which could constrain future expansion.

The working capital volatility is a key driver of the erratic cash flow pattern. The large outflow in Q2 2025 was likely due to timing of receivables and payables, while the inflow in Q3 2025 suggests a reversal. This volatility complicates the assessment of underlying cash generation, as it may not reflect core operational efficiency. Investors should focus on the longer-term trend, which shows that working capital changes have been a net source of cash over the past year, but the sustainability of this is uncertain given the revenue decline.

CSX's capital deployment strategy is heavily skewed toward shareholder returns, with dividends and buybacks consuming a significant portion of FCF. The $1 billion buyback in Q4 2024 was particularly aggressive, and while the pace has moderated, it still exceeds the level of FCF in some quarters. This suggests that the company is prioritizing returning cash to shareholders over building a cash buffer, which may be a concern given the elevated leverage and revenue decline. The acquisition activity has been minimal, with net acquisitions of $73 million in Q2 2026, indicating a focus on organic growth and buybacks.

The cumulative gap between operating cash flow and net income is substantial, indicating that earnings are backed by strong cash generation. This is typical for capital-intensive industries with high depreciation, but the magnitude here is notable. The gap may also reflect gains on asset sales or changes in working capital that are not captured in net income. While this is a positive signal for earnings quality, investors should be aware that the gap could narrow if working capital turns negative or if depreciation charges decline.