HF Sinclair’s stock has been on a tear — up +80.2% in six months and +100.1% in a year — while the business it represents looks more complicated on paper.
Market cap sits at 16.8B and enterprise value at 18.6B, with net debt of 1.8B. The market is clearly paying up: the company trades at a P/E of 29.0x, a +72.0% premium to the filing-peer median. That premium is the heart of the tension here.
Management put the operational highlight bluntly in its filing when it showed a big jump in EBITDA this year:
> "Below is our calculation of EBITDA: Three Months Ended March 31, 2026 2025 (In millions) Net income (loss) attributable to HF Sinclair stockholders $ 648 $ (4) Add: interest expense 41 49 Less: interest income (10) (9) Add: income tax expense 189 1 Add: depreciation and amortization 229 225 EBITDA $ 1,097 $ 262 41 Table of Contents Reconciliation of refinery operating information (non-GAAP performance measures) to amounts reported under generally accepted accounting principles in the financial statements." (HF Sinclair / 10-Q / 2026-05-01)
Plain-English read: Q1 2026 EBITDA came in at $1,097 million versus $262 million in the comparable prior period shown in the filing. That’s a big, visible earnings rebound — the kind of number that makes multiples expand quickly.
But the backdrop that produced that big quarter is more mixed. Fiscal-year revenue has slid from a 2022 peak of 38.2B to 32.0B in 2023 and then to 26.9B in 2025. Operating margin in 2025 was 3.5%, down from 6.9% in 2023; net margin was 2.2% in 2025, down from 5.0% in 2023. In short: trailing sales and margins are smaller than they were three years ago.
That creates the core tension: one very large earnings pulse and decent cash-flow coverage versus a several-year drift in top-line and margin. On the cash side, operating cash flow covered net income at 2.27x in the latest annual period, and cash-flow yield is +7.8%. So the company is generating cash, and that helps explain why investors have been willing to pay a premium.
The company’s own scenario math underscores how fragile the outcome is to valuation assumptions. The two upside scenarios assume revenue growth steep enough to justify current multiples, while the downside tweaks growth and applies a much lower exit multiple. The gap between those outcomes is enormous — driven mostly by what exit P/E the market applies — which means future returns are highly sensitive to multiple expansion or contraction.
There’s one more crosswind: management lists credit and interest rates among business drivers in multiple filings. That’s consistent with repeated filings noting interest as a headwind — something to watch because it affects refinancing, cost of capital, and how much of a premium those future cash flows deserve.
So the story reads like this: a company that has posted a very large, headline-grabbing EBITDA number and solid cash conversion has seen its shares rerate higher, even as annual revenue and margins remain below their recent peaks. The math that justifies the new price relies heavily on the multiple the market is willing to assign — and that multiple swings the outcomes dramatically.
*HF Sinclair reported revenue of $26.9B for the year ended 2025 and Q1 2026 EBITDA of $1,097M (HF Sinclair filings).*