Marathon Petroleum Corporation (MPC): analysis and signal as of September 4, 2026
In short
The current signal on Marathon Petroleum Corporation is described as low, with no directional conviction. The main reason is a share price that is very extended above the moving averages, combined with peak-cycle valuations that make the projected multiples unreliable.
- Current signal
- weak (vote 2/3)
- Deterministic score
- +3.0 → signal expected by the scale : moderate (September 10, 2026)
- Layers
- fundamentals : positive, price : neutral, risks : positive
Triggered rules
| Rule | Weight |
|---|---|
| favors (GARP) a stock whose PEG is below 1, growth not yet paid for | +1.5 |
| favors robust fundamental health (high Piotroski F-Score) | +1.5 |
| penalizes direct holding of US securities in a CTO (US estate tax at death), favors a UCITS ETF domiciled in IE | -1.0 |
| moderately favors an asset with robust operating profitability (RMW factor), cross-check with accounting quality (possible manipulation) | +0.5 |
| moderately favors a positive 12-1 month momentum (tailwind), BUT guardrail: costly rotation, long-term reversal, momentum crashes, a conviction signal, not a rotation trigger | +0.5 |
Thesis
The operational momentum of T2 2026, with net income multiplied by four and EBITDA multiplied by 2.5, likely marks a peak cycle on cracking margins and probably masks a non-recurring gain, which makes the projected P/E of 8.1 unreliable. The share price at 387.71 USD exceeds the MM50 by +21.7 % and the MM200 by +62 %, and stands 19 % above the mean consensus target of 324 USD across 33 analysts, a rare gap. French taxation (15 % US withholding on dividends and PFU 31.4 % on capital gains) creates an annualised drag of 1.0 to 1.5 points of yield.
Bull case
The EXPANSION macro regime with a bullish weighting of 0.58, the favoured sector status of US energy and the FED around 3.50-3.75 % support demand for refined products. Intraday institutional flow is rising by +60.4 % over 6 months, confirming that the rally is not driven by retail. The strength of T2 2026 results, manageable net debt of 26.5 Bn USD against annualised EBITDA of approximately 34 Bn, and the drop in specific short interest of -3.9 % support a thesis of structural revaluation of refining margins.
Bear case
The technical configuration looks adverse, with an unanimous overshoot of analysts by the price and peak values that make the projected P/E and the P/B at 5.75 misleading. The absence of an identifiable defensible competitive advantage in a commodities business, grouping refining and midstream MPLX, deprives MPC of a wide economic moat over twenty years. The RFS 2026-2027 regulatory risk, through the reallocation of exemptions and the rise in renewable fuel obligations, weighs on future margins at a time when cracking spreads are peaking.
Scenarios
Bullish scenario: 25 % probability, target 430 USD, an extension of 10 % above the current price if refining margins hold for 12 to 18 months and if US energy benefits from the reopening of the carry trade. Central scenario: 45 % probability, return to 340-360 USD (MM50) then a range with normalisation to 324 USD, analyst target. Bearish scenario: 30 % probability, a maximum loss of 28 % to 280 USD if the peak in margins is confirmed and if T3-T4 revenues fall by 25 to 40 %.
Risks
The main risk lies in the commodities nature of the business, which exposes profitability to cracking spreads and oil cycles. The RFS 2026-2027 regulation can compress margins via the increase in renewable fuel obligations. The absence of a defensible competitive advantage makes any valuation premium fragile in the event of cycle normalisation. Finally, French taxation cuts net yield by 1.0 to 1.5 points on an annualised basis.
Market positioning (short sellers)
- Short interest / shares outstanding
- 2.33 %
- Days to cover
- 2.48
- Settlement date
- 2026-08-14
- Source
- FINRA (disseminated on 2026-08-26)
Signal history (last 12 months)
| Date | Signal | New fact |
|---|---|---|
| weak (2/3) | No notable change compared to the initial verdict, no new striking quantitative data having been integrated into the analysis layer provided. |
Frequently asked questions
What is the current signal on Marathon Petroleum Corporation ?
The signal is described as low at 2026-09-04, with a 2/3 vote. This rating reflects the absence of clear directional conviction, mainly due to a share price extended by 21.7 % above the MM50 and 62 % above the MM200. Peak-cycle valuations mask the quality of T2 2026 results.
Why does the share price exceed the analyst consensus target ?
The share price at 387.71 USD stands 19 % above the mean consensus target of 324 USD across 33 analysts. This rare gap reflects a technical overheating fed by the operational momentum of T2 2026, in which net income was multiplied by four and EBITDA by 2.5, possibly inflated by a non-recurring item.
What arguments support the bullish thesis ?
The EXPANSION macro regime with a weighting of 0.58, FED policy between 3.50 and 3.75 %, and intraday institutional flow up 60.4 % over 6 months support demand. Net debt of 26.5 Bn USD remains manageable against annualised EBITDA of approximately 34 Bn, and the 3.9 % drop in short interest accompanies the revaluation of margins.
What are the main bearish risks ?
The projected P/E of 8.1 and the P/B of 5.75 rest on peak cracking margins. The RFS 2026-2027 regulation on renewable fuels threatens future profitability. The absence of a wide identifiable competitive advantage in the refining and midstream MPLX pair undermines any lasting premium.
What scenarios are envisaged for the stock ?
Bullish scenario at 25 % with a 430 USD target. Central scenario at 45 % with a return to 340-360 USD then normalisation to 324 USD. Bearish scenario at 30 % with a 28 % pullback to 280 USD in the event of a confirmed margin peak and a decline in T3-T4 revenues between 25 and 40 %.
Sources
The official filings below are the issuer's own, matched to this stock by its identifier (LEI, CIK or ISIN). The figures quoted above come from an automated arbitration: they have not been re-checked one by one.
- — 2.02 Results of Operations and Financial Condition; 9.01 Financial Statements and Exhibits (SEC · 8-K)
- — 10-Q (SEC · 10-Q)
- — 8.01 Other Events (SEC · 8-K)
- — 2.02 Results of Operations and Financial Condition; 9.01 Financial Statements and Exhibits (SEC · 8-K)
- — 10-Q (SEC · 10-Q)
Automated AI analysis: limitations and transparency
- This content is an automated analysis produced using artificial intelligence. Personal analysis for information purposes — no personalised investment advice. MMR content consists of general research. It does not take account of your financial circumstances, objectives or risk tolerance. Data, analyses and results, including those produced using artificial intelligence, may contain errors, be incomplete or become outdated. No return or outcome is guaranteed. All investments carry a risk of partial or total loss of capital. Past performance and simulations do not predict future results. Before making any decision, check information against original sources and, where necessary, consult an authorised professional. You remain responsible for your investment decisions. This notice does not exclude or limit any liability that cannot legally be excluded or limited.
- Tool and analysis: QDNA, Aurélien Ambert.
- Analysis (arbitration) completed on September 4, 2026; this page was completed on September 4, 2026 at 06:48 (UTC).
- Interests: no position in the stock analysed (MPC) is recorded in the data consulted on (UTC). This does not confirm the absence of holdings or other interests. The situation at the analysis publication date has not been reconstructed.
- This declaration covers only recorded positions in this stock; it is not an exhaustive verification of other interests or remuneration.
- Methodology: analysis chain, score formula and scale described on the public methodology page.
- Analysis horizon: 2035.
See also
- Neighbouring stock in the same sector: Devon Energy Corporation (DVN)
- All analysed stocks
- Public methodology