Delek US Holdings, Inc. (DK) Cash Flow Statement

The OCF/NI ratio swung wildly, from -5.11 in 2024Q1 to 6.47 in 2025Q4, indicating that cash conversion is heavily influenced by working capital timing rather than core earnings. The 2026Q2 ratio of 1.52 appears more sustainable, but the persistent negative net income in prior quarters suggests that reported earnings quality remains weak. Investors should monitor whether working capital swings continue to mask underlying cash generation.

The FCF trajectory is highly erratic, with negative FCF in five of the last ten quarters, including a -$203M trough in 2025Q1. The 2026Q2 FCF of $84M is positive but modest relative to revenue, and the TTM FCF margin of roughly 2% is below the peer average of 3-5%. This suggests that DK's cash generation is not yet stable enough to support its debt service and capital return commitments.

Capital expenditures have remained elevated even during periods of negative operating cash flow, indicating that maintenance and regulatory compliance spending is non-discretionary. The capital intensity relative to revenue is higher than peers like PBF (2.4% FCF margin) and CVI (4.1%), which may limit DK's ability to generate free cash flow during downturns. This suggests that DK's asset base requires continuous investment, potentially constraining deleveraging efforts.

The extreme volatility in working capital, particularly the $598M inflow in 2026Q1, appears to be driven by inventory valuation adjustments and timing of payables, which may not reflect operational efficiency. The negative working capital changes in 2024Q2 and 2026Q2 suggest that cash is being absorbed by inventory builds or receivable collections, potentially indicating margin pressure. Investors should monitor whether these swings normalize, as they currently obscure the underlying cash generation ability.

Despite negative free cash flow in several quarters, DK continued to pay dividends and repurchase shares, suggesting that these distributions are being funded by debt or working capital drawdowns. The $20M buyback in 2026Q2, alongside a $15.6M dividend, consumed more than the quarter's FCF of $84M, indicating a potential over-distribution relative to cash generation. This raises concerns about the sustainability of capital returns given the high leverage and volatile earnings.

The large cumulative gap between net income and operating cash flow suggests that non-cash charges, particularly depreciation and working capital adjustments, are significantly boosting cash flow relative to accounting earnings. This divergence may indicate that the company is generating cash from operations despite reporting losses, but it also raises questions about the sustainability of these cash flows if they are driven by one-time working capital releases. Investors should monitor whether this gap narrows as working capital normalizes.