Skip to main content
Marathon Petroleum Corp.
Energy · Oil & Gas Refining & Marketing
Made on Sep 2, 2026
Price at call $388.08
6-month call Bull +27.6%
Target by Mar 2027 $495.00
Great value below $320.00
Model v0.6.0

Projection vs Actual (6M history + forecast)

The masterbrain's trajectory (blue, curved through its 7 checkpoints), the deterministic v0.3 control (dashed), and the actual price (green) overlaid from the prediction date forward.
Forecast Change +27.6% to $495.00
Predicted High $495.00 at 6 months
Predicted Low $402.50 in 2 weeks

Forecast

The masterbrain trajectory — 7 dated checkpoints. Short rungs (2w, 1m) show the typical range as the primary claim; point calls run from 2 months out. Every claim still gets graded. Predicted Sep 2, 2026 1:01 pm
Bull MPC trends higher to $495.00 (+27.6% from $388.08) by Mar 2027. ride-then-fade
ThesisMPC is riding a hot refining/Hormuz-risk tape with strong momentum (80% trailing 6mo) and sits well below composite fair value near $700. Near-term the sentiment and cohort strength should extend the rally, then digestion sets in, but value gravity plus a still-supportive backdrop keeps the drift higher toward the deterministic baseline over 6 months.
Invalidated ifA collapse in refining crack spreads or resolution of Hormuz risk premium sending MPC back below $340, or a broad risk-off regime shift.
Checkpointtime after the call Datewhen it gets graded Predictedthe claim: closing price Current priceactual close — fills in over time Predicted returnpredicted vs $388.08 at call Conv.brain's confidence, 1–10 Driverwhy the brain put the point here
Prediction made Sep 2, 2026 — $388.08 at call — —The anchor — every point below is measured from this price and date.
2 weeks Sep 16, 2026 $361.17–$414.99 typical range · internal point $402.50 — ±6.9% 6/10 Momentum and refiner cohort tailwind persist near term
What actually happened: closed $410.84 on Sep 15, 2026 = +5.9% vs the call (predicted +3.7%)  ·  direction MISS (called flat, was up)  ·  off by 2.2 pp  ·  accuracy 4/10  ·  typical range ±6.9%: inside the band  ·  S&P -1.1% over the same window — beat it
1 month Oct 2, 2026 $349.08–$427.08 typical range · internal point $412.00 — ±10.1% 5/10 Sentiment windfall narrative continues lifting group
What actually happened: closed $420.15 on Oct 1, 2026 = +8.3% vs the call (predicted +6.2%)  ·  direction HIT (called up, was up)  ·  off by 2.1 pp  ·  accuracy 9/10  ·  typical range ±10.1%: inside the band  ·  S&P +0.0% over the same window — beat it
2 months Nov 2, 2026 $420.00 — +8.2% 4/10 Digestion of rally, some profit-taking after run
3 months Dec 2, 2026 $435.00 — +12.1% 4/10 Q4 refining seasonality and value gap attract buyers
4 months Jan 2, 2027 $455.00 — +17.2% 4/10 Value gravity toward composite fair value asserts
5 months Feb 2, 2027 $475.00 — +22.4% 3/10 Earnings print reinforces cash return story
6 months Mar 2, 2027 $495.00 — +27.6% 3/10 Drift toward deterministic baseline endpoint

Why ranges on the short rungs? A 102-prediction trial (2026-07-21) showed 2-week point calls carry no information here — three prompt formulations all lost to simply predicting zero — while the stock's own volatility scale (σ×√t) described those windows well. So the short rungs claim what's actually knowable: the typical travel, with earnings timing flagged where the variance will come from. The internal point calls keep being generated and graded to map where real skill begins. Full evidence: stocks/predictions/V0.5-DESIGN.md §8.

Deterministic control (v0.3 value line) targets $514.94 (+32.7%) — both lines get graded at every checkpoint, so the brain has to beat the formula, not just replace it. Brain: claude-opus-4-7.

Weaknesses

No weaknesses recorded for this run.

All inputs present, no fallbacks used — nothing to flag.

Equation Inputs

Everything feeding the v0.6.0 model — value anchors, the stock's own price behaviour, and the tunable knobs.

Value anchors (from deep analysis)

Price at call$388.08
Composite fair value$701.75
Signal-adjusted fair value$623.80
DCF fair value$777.79
Anchored-PE fair value$1,012.70
Buy-below (value lens)$320.00
Value net score-6
Value confidence6 / 10
Quality net score+13
Memo confidence6 / 10
Deserved value (base)—
Quality tilt—
Deserved value (used)—
Coherence (value × quality)—

Price behaviour (trailing — shapes the realism line)

Realized volatility (annualized) 1m 38.7%  3m 34.8%  6m 36.7%  
Daily σ (realism noise)2.2%
Beta vs S&P 500 1m -0.77  3m -0.30  5m -0.80  
Trailing 6-month return80.7%

Knobs (equation params)

ladder["w2","m1","m2","m3","m4","m5","m6"]
llm_modelclaude-opus-4-7
max_tokens3000
control_knobs{"w_dcf":0.5,"k_qual":0.200000000000000011102230246251565404236316680908203125,"reach_6m":0.450000000000000011102230246251565404236316680908203125,"coh_floor":0.5,"conf_gain":0.059999999999999997779553950749686919152736663818359375,"noise_phi":0.84999999999999997779553950749686919152736663818359375,"conf_floor":0.40000000000000002220446049250313080847263336181640625,"w_composite":0.5,"noise_window":"3m","flat_band_pct":5,"horizon_months":6,"noise_sigma_fallback":0.01499999999999999944488848768742172978818416595458984375}
Neutral band (%)5
earnings_briefv1
prompt_versionp1
control_versionv0.3.0

Version & Tech Chain

What produced this prediction — stamped on the record so versions can be compared by success rate later.
Model v0.6.0 #271041f8fcd5

Tech composition (what this version is built from)

#ProcessKindGroup
1 Synthesis valuation-synthesis deterministic final
2 Scenario Analysis scenario-valuation deterministic valuation
3 Valuation / Mispricing ext-lens-value llm extended
4 Company Quality ext-lens-quality llm extended
5 Forensic Memo (combiner) ext-forensic-memo llm extended
6 Classification company-classification llm foundation
7 Live Quote fmp-quote data market-data

Inputs used (the runs that fed this prediction)

Upstream processRanLagRun id
company-classification Aug 11, 2026 21d behind MPC-20260811-004903-87ed
ext-forensic-memo Sep 2, 2026 freshest ext-MPC-20260901-235218-f4fb
ext-lens-quality Sep 1, 2026 freshest ext-MPC-20260901-235218-f4fb
ext-lens-sentiment Sep 1, 2026 freshest ext-MPC-20260901-235218-f4fb
ext-lens-value Sep 1, 2026 freshest ext-MPC-20260901-235218-f4fb
scenario-valuation Sep 2, 2026 freshest MPC-20260901-233001-4f4d
valuation-synthesis Sep 2, 2026 freshest MPC-20260901-233001-4f4d

Inputs flagged 7d+ behind the freshest one may be stale relative to the rest of the analysis.

Saved History

3 frozen snapshots — the record we score once predictions mature.
MadeModelCallAt callTargetExp.Eval due
Sep 2, 2026 v0.6.0 Bull $388.08 $495.00 +27.6% Mar 2027 viewing
Aug 11, 2026 v0.6.0 Bull $320.32 $350.00 +9.3% Feb 2027 view
Jul 12, 2026 v0.3.0 Neutral $283.74 $276.81 -2.4% Jan 2027 view

Not Yet Modeled

What this v0.6.0 forecast deliberately ignores — the work ahead, in plain sight.
  • Scenario probabilities — one path, no bull/bear split (base_prob = 1.0).
  • Intraday / sub-2-week behaviour — the first claim is at 14 days by design (EOD product).
  • Position sizing / portfolio context — the path is a price claim only.