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MPC$422.33 +0.00%+ Alert
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● 10 Oct · US closed · scored 05:29
● Sat 10 Oct 2026/US closed · opens Mon 14:30 BST/101 names scored today/last score 10:32 BSTResearch, not advice · every call is published at Proof
Stocks / Energy / 30 of 32 in the sector ☆ Add to book Compare… + Alert

MPC

Marathon Petroleum Corp
$422.33 · +0.00% vs $422.33 close · scored 05:29 · stale
Decision brief
BEARISH · 66/100
What changed
No prior comparable read.
Evidence is stale — treat this read cautiously.
What would change the view
composite rises above -15 · confidence deteriorates materially from 66/100
For the read
options volume favours puts · open interest agrees with the read
Against / uncertainty
signal stability is low
The read
Mildly bearish, moderately evidenced, and the tape has led price here.
−100 bearish0bullish +100
−18.3 composite+26.3 vs a week ago
Evidence
66 / 100 · top 22% today
1,932 contracts · quality 77 · stability 0.00
hasn’t paid +2.29% · n=7,579
01

Why it’s −18

Method
What traded today · weight 62%
−9.8 pts
813 calls · 42.1%1,119 puts
bias −15.8 × 0.62
What’s on the books · weight 38%
−8.5 pts
12,401 call OI · 38.9%19,495 put OI
bias −22.2 × 0.38
Equals
−18.3
54% of the score comes from today’s volume, 46% from open interest. Disagree with either? See the method.
02

What changed: 45 days of tape against price

14d43d90d365d · Reader
tape composite (bars)— price◆ big one-day moves30d: price +6.17% · tape −7.1 · corr -0.17
◆ −70.4 in a day▼ low −45.5● peak +3308-2509-0109-0809-1509-2209-2910-0610-09$426$355

Plain English: Over 30 days, price has risen 6.17% while the tape has faded 7.1 points. The two are drifting apart.

03

Should you trust it?

note
Some evidence, not a lot
confidence 66 (78th pct) · quality 77 · 1,932 contracts
note
Jumpy
0.00 vs 7-day rolling · choppiness 0
against
This kind of read hasn’t paid
mildly bearish · put-heavy · low liquidity → +2.29% avg, n=7,579
pass
Tape has led price
tape has led MPC’s price by 3 days (r=0.42, n=44)
note
Stretched vs its own history
today’s tape sits low relative to price
note
Our record on MPC is mixed
38% hit rate on 1796 closed calls · payoff 0.61×
04

Where the positions sit

No per-strike chain is stored for this name yet, so we can’t show where the positions sit. The totals above still come from today’s chain.
Spot $422.33. The $340 strike holds the most open interest (the “wall”, 3,204).
05

Our record on MPC

Proof
38%
hit rate · 1796 closed
0.61×
payoff
−0.49%
avg return
3 Oct · 4h
$422.33 → $422.33
+0.00%flat
2 Oct · 4h
$411.91 → $411.91
+0.00%flat
2 Oct · 4h
$420.15 → $420.15
+0.00%flat
1 Oct · 4h
$421.56 → $421.56
+0.00%flat

One rule everywhere: a move of 0.05% or less is flat, and flat is not a hit. That is the same rule Proof uses; 279 of these 1796 calls were flat.

06

Catalysts & context

EPS surprise · last 4 quarters
−5.31%Q3 ’25
+40.05%Q4 ’25
+118.60%Q1 ’26
+27.72%Q2 ’26
Street Buy-leaningNext report — P/E 14.19 · fwd 8.25Beta 0.543 52w $161.93–$437.67IV rank —
Marathon Petroleum Corp · Energy
Mildly bearish, moderately evidenced. The tape has led price here.
−100 bearish0bullish +100
−18.3evidence 66
hasn’t paid +2.29% · n=7,579
Why it’s −18
−9.8 volume · 42% calls−8.5 OI · 39% calls
45 days · tape bars, price line
◆ −70.408-2509-0109-0809-1509-2209-2910-0610-09$426$355
Price +6.17%, tape −7.1 over 30 days. The two are drifting apart.
Should you trust it?
noteSome evidence, not a lot
confidence 66 (78th pct) · quality 77 · 1,932 contracts
noteJumpy
0.00 vs 7-day rolling · choppiness 0
againstThis kind of read hasn’t paid
mildly bearish · put-heavy · low liquidity → +2.29% avg, n=7,579
noteStretched vs its own history
today’s tape sits low relative to price
Ask about MPC
Why did the score rise from −31 to −18 this week?
It was mostly one day. The composite was −44.6 on 2 Oct, then rose to −18.3 on 3 Oct as the price moved from $420.15 to $422.33. It’s at −18.3 now.

Today’s −18.3 breaks down as −9.8 from volume and −8.5 from open interest. I can’t split past days the same way: the stored history keeps call/put volume but not open interest for past days.
tape_history · 45 ptsstock_scores · 05:29method · 62/38
Ask
Explain the $340 wallCompare MPC vs OXYAlert me before earnings