Data through close

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

As of close · rank #466 by open interest · 533 sessions of history since Sep 3, 2024

GAP's nearest-expiration max pain is 22.00 for 2026-10-23, its GEX flip is 19.46, net GEX is 5,478,812, its put/call open-interest ratio is 0.79. These are whole-chain derived aggregates as of Oct 16, 2026 close.

GAP 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
22.00
-4.8% from close
Expiry: 2026-10-23
GEX flip
19.46
-15.8% from close
Net GEX
5,478,812
3,432,066 per 100k OI
Call wall
24.00
+3.8% from close
Put wall
22.00
-4.8% from close
Put/call OI
0.79
70,497 puts / 89,139 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
23.12
prev 23.46
Gamma max
25.67
+11.0% from close
Delta neutral
21.23
-8.2% from close
Gamma neutral
19.46
-15.8% from close
Open interest
159,636
-6.7% vs prev
Contracts listed
341
207 calls · 182 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
52.8
cross-sectional score / 100
Directional score
-32.7
relatively bearish positioning
IV rank
100.0
within trailing 52-week range
Front IV premium
-7.5 pp
front minus back volatility difference
25Δ risk reversal
242.6 pp
put IV minus call IV
IV butterfly
8.8 pp
front-window smile convexity
Volume / open interest
0.02
3,776 contracts traded
Normalized net delta
0.121
option-holder convention
Modeled dealer delta
-0.120
opposite-side scenario
Vanna / 100k OI
2,982
volatility-sensitive delta
Charm / 100k OI
-12,753
time-decay-sensitive delta
IV surface range
245.5 pp
aggregate volatility dispersion

Strongest relative signals: 25Δ risk reversal 242.6 pp · IV rank 100 · smile convexity 8.8 pp

Download the dated aggregate analysis JSON .

GAP closed 11.0% below its gamma max of 25.67. It is 8.2% above the delta neutral price of 21.23. Total open interest is 159,636, -6.7% versus the previous session. Its options catalyst-intensity score is 52.8 out of 100, led by 25Δ risk reversal 242.6 pp, IV rank 100, smile convexity 8.8 pp. 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.

GAP call and put open interest changes
Measure Value
Call OI change, 1 session -5,456 contracts · -5.8%
Put OI change, 1 session -6,070 contracts · -7.9%
Call minus put OI growth, 1 session +2.2 pp
Call OI change, 5 sessions -3,117 contracts · -3.4%
Put OI change, 5 sessions -3,526 contracts · -4.8%
Call minus put OI growth, 5 sessions +1.4 pp
Daily call OI change surprise -0.41σ (252 prior changes)
Daily put OI change surprise -0.79σ (252 prior changes)
Daily call-minus-put growth surprise +0.28σ (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 2026-10-16. The max pain curve pools all listed expirations; individual contracts are outside the public dataset.

Aggregate IV history

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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 18 completed Day +10 paths · latest Feb 17, 2026
GAP 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. -20.0% -10.0% 0% +10.0% +20.0% Cross on Nov 14, 2024 Cross on Nov 25, 2024 Cross on Dec 4, 2024 Cross on Apr 25, 2025 Cross on May 6, 2025 Cross on May 8, 2025 Cross on May 15, 2025 Cross on Sep 5, 2025 Cross on Oct 21, 2025 Cross on Oct 29, 2025 Cross on Nov 11, 2025 Cross on Nov 13, 2025 Cross on Nov 18, 2025 Cross on Nov 24, 2025 Cross on Dec 5, 2025 Cross on Dec 22, 2025 Cross on Jan 9, 2026 Cross on Feb 17, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
GAP historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 18 -1.6% -2.2% to +2.0% 39% -2.0% to +1.5% 0.0%
Day +2 18 +0.6% -2.4% to +3.2% 50% -2.2% to +2.2% 0.0%
Day +3 18 +0.5% -2.3% to +4.6% 61% -2.3% to +4.2% 0.0%
Day +4 18 +1.2% -3.1% to +4.7% 56% -2.5% to +4.1% 0.0%
Day +5 18 -0.5% -2.6% to +9.8% 44% -1.3% to +9.4% 0.0%
Day +6 18 +3.7% -2.1% to +8.8% 67% -1.5% to +8.5% 0.0%
Day +7 18 +2.7% -3.2% to +8.3% 67% -1.0% to +7.8% 0.0%
Day +8 18 +4.3% +1.6% to +9.5% 78% +1.7% to +9.3% +1.7%
Day +9 18 +2.9% +0.6% to +9.6% 78% +1.4% to +9.6% +1.4%
Day +10 18 +4.1% -1.8% to +10.5% 67% -1.3% to +9.7% 0.0%
Crosses above gamma max 19 completed Day +10 paths · latest Feb 13, 2026
GAP 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. -18.0% -9.0% 0% +9.0% +18.0% Cross on Nov 13, 2024 Cross on Dec 2, 2024 Cross on Apr 2, 2025 Cross on Apr 24, 2025 Cross on May 2, 2025 Cross on May 7, 2025 Cross on May 12, 2025 Cross on Aug 13, 2025 Cross on Sep 4, 2025 Cross on Oct 20, 2025 Cross on Oct 23, 2025 Cross on Nov 7, 2025 Cross on Nov 12, 2025 Cross on Nov 14, 2025 Cross on Nov 21, 2025 Cross on Nov 25, 2025 Cross on Dec 19, 2025 Cross on Jan 8, 2026 Cross on Feb 13, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
GAP historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 19 -0.5% -1.2% to +1.1% 32% -1.1% to +1.0% 0.0%
Day +2 19 -1.2% -2.5% to +2.9% 47% -2.4% to +2.4% 0.0%
Day +3 19 +1.2% -3.1% to +5.4% 58% -2.8% to +4.9% 0.0%
Day +4 19 +0.7% -4.4% to +4.8% 63% -4.3% to +4.0% 0.0%
Day +5 19 +1.0% -3.1% to +4.8% 53% -2.3% to +3.4% 0.0%
Day +6 19 +0.2% -3.1% to +9.0% 53% -1.8% to +7.9% 0.0%
Day +7 19 +1.3% -1.4% to +10.2% 58% -1.0% to +10.1% 0.0%
Day +8 19 +1.7% -3.6% to +10.2% 58% -2.7% to +9.2% 0.0%
Day +9 19 +2.0% -4.2% to +10.2% 63% -4.1% to +8.1% 0.0%
Day +10 19 +5.4% -2.6% to +10.8% 63% -1.7% to +10.5% 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

GAP trailing historical statistics
Sessions closed above gamma max 9%
Gamma max crosses 20
Delta neutral crosses 22
Prior-year sessions closer to gamma max 55.6% of 252
Prior-year sessions closer to delta neutral 65.5% of 252
Open interest percentile (1y) 50th
Daily open interest change versus prior year -0.62σ (-11,526 contracts; 252 prior changes)
Open interest change, 5 sessions -4.0%
Open interest change, 21 sessions -29.1%
History available Sep 3, 2024 → Oct 16, 2026

Recent crosses

  1. closed above delta neutral at 20.87 vs 20.33 (+2.6%)
  2. closed below delta neutral at 20.17 vs 20.40 (-1.1%)
  3. closed above delta neutral at 21.15 vs 20.59 (+2.7%)
  4. closed below delta neutral at 20.15 vs 20.25 (-0.5%)
  5. closed above delta neutral at 20.36 vs 20.25 (+0.5%)
  6. closed below delta neutral at 20.18 vs 20.30 (-0.6%)
  7. closed above delta neutral at 20.39 vs 20.32 (+0.4%)
  8. closed below delta neutral at 20.25 vs 20.28 (-0.2%)
  9. closed above delta neutral at 20.49 vs 20.38 (+0.5%)
  10. closed below delta neutral at 20.38 vs 20.39 (-0.0%)

In today's screens

Neighbours by open interest

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

Questions people ask about GAP

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

As of Oct 16, 2026 close, nearest-expiration max pain is 22.00 for the 2026-10-23 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 GAP's gamma exposure and gamma flip show?

Signed net GEX is 5,478,812 as of Oct 16, 2026 close. The confirmed GEX flip is 19.46. 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 GAP's gamma max today?

As of Oct 16, 2026, the gamma max for GAP is 25.67, +11.0% from the 23.12 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 GAP above or below its delta neutral price?

GAP closed above delta neutral: 23.12 against a delta neutral price of 21.23. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does GAP have?

159,636 contracts of open interest across 341 listed contracts on Oct 16, 2026, -6.7% 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.