Data through close

COF max pain, gamma exposure (GEX) & options open interest

As of close · rank #543 by open interest · 1,409 sessions of history since Dec 1, 2020

COF's nearest-expiration max pain is 202.50 for 2026-10-30, its GEX flip is 200.96, net GEX is 182,256, its put/call open-interest ratio is 1.04. These are whole-chain derived aggregates as of Oct 23, 2026 close.

COF max pain and GEX snapshot

End-of-day snapshot for . Nearest-expiration max pain uses the expiry shown on its card; GEX uses the whole chain. Missing values are unavailable, not zero.

Nearest-expiration max pain
202.50
+0.6% from close
Expiry: 2026-10-30
GEX flip
200.96
-0.2% from close
Net GEX
182,256
142,273 per 100k OI
Call wall
210.00
+4.3% from close
Put wall
200.00
-0.7% from close
Put/call OI
1.04
65,384 puts / 62,719 calls

Prices are in US dollars per share. Net GEX is modeled dollar-delta change per $1 underlying move. Max pain minimizes aggregate intrinsic payout for that expiration; it is not a closing-price forecast. Signed GEX uses calls positive and puts negative, a model convention rather than observed dealer inventory. The flip is a confirmed zero crossing; walls locate side-specific concentrations, not guaranteed support or resistance.

Learn how to read the max pain payout example, GEX chart, gamma flip and walls, and open interest versus trading volume.

Close
201.34
prev 203.43
Gamma max
227.11
+12.8% from close
Delta neutral
203.26
+1.0% from close
Gamma neutral
200.96
-0.2% from close
Open interest
128,103
-10.4% vs prev
Contracts listed
575
372 calls · 309 puts

Advanced options analysis

Public aggregate analysis from the dated chain, normalized where possible for comparison across tickers. Catalyst intensity measures unusual pricing and activity; it does not identify an event, predict direction, or establish that an investment is attractive.

Catalyst intensity
46.1
cross-sectional score / 100
Directional score
-5.2
mixed positioning
IV rank
58.9
within trailing 52-week range
Front IV premium
2.8 pp
front minus back volatility difference
25Δ risk reversal
-1.8 pp
put IV minus call IV
IV butterfly
-3.2 pp
front-window smile convexity
Volume / open interest
0.07
9,349 contracts traded
Normalized net delta
-0.006
option-holder convention
Modeled dealer delta
0.006
opposite-side scenario
Vanna / 100k OI
3,514
volatility-sensitive delta
Charm / 100k OI
-27,731
time-decay-sensitive delta
IV surface range
68.1 pp
aggregate volatility dispersion

Download the dated aggregate analysis JSON .

COF closed 12.8% below its gamma max of 227.11. It is 1.0% below the delta neutral price of 203.26. Total open interest is 128,103, -10.4% versus the previous session. Its options catalyst-intensity score is 46.1 out of 100. What gamma max means · What delta neutral means

Call versus put open interest changes

Growth compares outstanding contracts on each side. A positive growth gap favors calls; a negative gap favors puts. Standardized surprises compare each measure with its own prior history. These describe the OI balance, not IV skew or buying direction.

COF call and put open interest changes
Measure Value
Call OI change, 1 session -7,111 contracts · -10.2%
Put OI change, 1 session -7,831 contracts · -10.7%
Call minus put OI growth, 1 session +0.5 pp
Call OI change, 5 sessions +5,821 contracts · +10.2%
Put OI change, 5 sessions +4,647 contracts · +7.7%
Call minus put OI growth, 5 sessions +2.6 pp
Daily call OI change surprise -0.79σ (252 prior changes)
Daily put OI change surprise -1.37σ (252 prior changes)
Daily call-minus-put growth surprise +0.06σ (252 prior changes)

History

2025-10 2026-10
close delta neutral gamma max
Full history since 2020: drag to pan, scroll to zoom, hover for values. Open full-screen chart

Analysis visualizations

Daily ticker aggregates through 2026-10-23. The max pain curve pools all listed expirations; individual contracts are outside the public dataset.

Aggregate IV history

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Swipe chart sideways to see the full range.

What followed prior gamma-max crosses?

Each historical path starts at 0% on the cross date and follows the close for ten subsequent trading sessions. Cohorts use the same direction as labelled and require gamma max to be within 10% of the close on both crossing sessions.

Crosses below gamma max 25 completed Day +10 paths · latest Aug 7, 2026
COF returns after crossing below gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -12.0% -6.0% 0% +6.0% +12.0% Cross on Jan 12, 2021 Cross on Feb 16, 2021 Cross on Feb 25, 2021 Cross on Mar 2, 2021 Cross on Mar 4, 2021 Cross on Mar 9, 2021 Cross on Mar 18, 2021 Cross on Apr 12, 2021 Cross on Apr 15, 2021 Cross on May 13, 2021 Cross on Jun 2, 2021 Cross on Jun 7, 2021 Cross on Aug 17, 2021 Cross on Sep 24, 2021 Cross on Feb 17, 2022 Cross on Oct 15, 2024 Cross on Nov 7, 2024 Cross on Nov 12, 2024 Cross on Jan 27, 2025 Cross on Feb 20, 2025 Cross on Dec 17, 2025 Cross on Dec 19, 2025 Cross on Jan 7, 2026 Cross on Jul 17, 2026 Cross on Aug 7, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
COF historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 25 +0.6% -0.6% to +1.2% 64% -0.5% to +1.2% 0.0%
Day +2 25 +0.7% -1.6% to +2.0% 64% -0.9% to +1.9% 0.0%
Day +3 25 +0.3% -2.9% to +1.6% 56% -2.5% to +1.5% 0.0%
Day +4 25 +0.4% -2.3% to +2.3% 56% -2.1% to +2.3% 0.0%
Day +5 25 -0.3% -1.9% to +1.7% 48% -1.4% to +1.0% 0.0%
Day +6 25 +0.1% -1.6% to +1.8% 52% -1.2% to +1.7% 0.0%
Day +7 25 -0.6% -2.2% to +2.1% 44% -1.4% to +1.7% 0.0%
Day +8 25 +0.3% -2.1% to +1.9% 68% -0.9% to +1.7% 0.0%
Day +9 25 +1.0% -2.4% to +2.8% 56% -2.3% to +2.7% 0.0%
Day +10 25 +1.1% -3.1% to +3.5% 60% -2.2% to +3.1% 0.0%
Crosses above gamma max 25 completed Day +10 paths · latest Aug 3, 2026
COF returns after crossing above gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -12.0% -6.0% 0% +6.0% +12.0% Cross on Jan 6, 2021 Cross on Feb 12, 2021 Cross on Feb 22, 2021 Cross on Feb 26, 2021 Cross on Mar 3, 2021 Cross on Mar 5, 2021 Cross on Mar 10, 2021 Cross on Apr 9, 2021 Cross on Apr 14, 2021 Cross on Apr 28, 2021 Cross on Jun 1, 2021 Cross on Jun 4, 2021 Cross on Aug 11, 2021 Cross on Sep 23, 2021 Cross on Feb 15, 2022 Cross on Oct 11, 2024 Cross on Nov 6, 2024 Cross on Nov 8, 2024 Cross on Jan 24, 2025 Cross on Feb 19, 2025 Cross on Dec 16, 2025 Cross on Dec 18, 2025 Cross on Jan 6, 2026 Cross on Jul 16, 2026 Cross on Aug 3, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
COF historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 25 +0.1% -0.7% to +1.7% 56% -0.5% to +1.4% 0.0%
Day +2 25 +0.7% -1.1% to +1.8% 64% -0.9% to +1.8% 0.0%
Day +3 25 +0.8% -0.6% to +1.6% 64% -0.4% to +1.5% 0.0%
Day +4 25 +0.0% -2.2% to +2.1% 52% -1.9% to +1.5% 0.0%
Day +5 25 +0.6% -2.4% to +2.7% 56% -2.1% to +2.5% 0.0%
Day +6 25 +0.3% -3.7% to +2.8% 52% -3.4% to +1.2% 0.0%
Day +7 25 -0.1% -2.5% to +2.3% 48% -2.4% to +2.2% 0.0%
Day +8 25 +0.1% -3.0% to +2.7% 52% -2.4% to +1.9% 0.0%
Day +9 25 +0.5% -4.5% to +2.3% 52% -2.6% to +2.1% 0.0%
Day +10 25 +1.0% -2.5% to +3.6% 56% -1.0% to +3.2% 0.0%

Returns are close-to-close after the labelled number of subsequent trading sessions. The confidence floor is the closest-to-zero bound of the order-statistic median interval; it is zero when that interval spans zero. Its coverage is nominally at least 90% under independent observations. Historical paths can overlap, so the interval and floor are descriptive uncertainty guides rather than formal coverage guarantees. Historical, not a forecast.

Last 252 sessions

COF trailing historical statistics
Sessions closed above gamma max 3%
Gamma max crosses 10
Delta neutral crosses 19
Prior-year sessions closer to gamma max 81.7% of 252
Prior-year sessions closer to delta neutral 12.3% of 252
Open interest percentile (1y) 8th
Daily open interest change versus prior year -1.06σ (-14,942 contracts; 252 prior changes)
Open interest change, 5 sessions +8.9%
Open interest change, 21 sessions +7.8%
History available Dec 1, 2020 → Oct 23, 2026

Recent crosses

  1. closed below delta neutral at 201.34 vs 203.26 (-1.0%)
  2. closed above delta neutral at 206.66 vs 202.67 (+1.9%)
  3. closed below delta neutral at 198.07 vs 199.46 (-0.7%)
  4. closed above delta neutral at 199.40 vs 198.67 (+0.4%)
  5. closed below delta neutral at 196.46 vs 198.14 (-0.9%)
  6. closed above delta neutral at 200.20 vs 198.51 (+0.8%)
  7. closed below delta neutral at 203.19 vs 205.49 (-1.1%)
  8. closed below gamma max at 217.76 vs 229.06 (-5.2%)
  9. closed above gamma max at 217.68 vs 216.37 (+0.6%)
  10. closed below gamma max at 208.03 vs 220.40 (-5.9%)

In today's screens

Neighbours by open interest

Cite or embed this snapshot

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Canonical source: https://halfonadouble.com/stock/COF

Questions people ask about COF

What is COF's max pain for the nearest expiration?

As of Oct 23, 2026 close, nearest-expiration max pain is 202.50 for the 2026-10-30 expiration. It is a payout-minimizing strike for one expiration. An all-expiration pooled value is a different comparison, and neither establishes where the underlying will close. Max pain definition and worked payout example.

Our 2025 max-pain study compares historical Thursday levels with Friday underlying closes and an unchanged-price baseline. Its scope and results are separate from this current ticker snapshot.

What do COF's gamma exposure and gamma flip show?

Signed net GEX is 182,256 as of Oct 23, 2026 close. The confirmed GEX flip is 200.96. These aggregate model outputs use calls positive and puts negative. Their sign does not identify dealers' actual positions or predict the next move. How to interpret GEX, gamma flip and walls.

Where is COF's gamma max today?

As of Oct 23, 2026, the gamma max for COF is 227.11, +12.8% from the 201.34 close. Gamma max is the underlying price at which the summed gamma of every open contract is largest; how it is computed and why it matters.

Is COF above or below its delta neutral price?

COF closed below delta neutral: 201.34 against a delta neutral price of 203.26. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does COF have?

128,103 contracts of open interest across 575 listed contracts on Oct 23, 2026, -10.4% versus the previous session. What open interest measures.

Levels are recomputed after every trading day from licensed end-of-day options data; only derived aggregates are published. Methodology · Data and licence · Not investment advice.