Data through close

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

As of close · rank #347 by open interest · 1,404 sessions of history since Dec 1, 2020

AA's nearest-expiration max pain is 41.00 for 2026-10-23, its GEX flip is 41.86, net GEX is -540,781, its put/call open-interest ratio is 1.14. These are whole-chain derived aggregates as of Oct 16, 2026 close.

AA 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
41.00
-1.1% from close
Expiry: 2026-10-23
GEX flip
41.86
+1.0% from close
Net GEX
-540,781
-229,281 per 100k OI
Call wall
45.00
+8.5% from close
Put wall
40.00
-3.5% from close
Put/call OI
1.14
125,824 puts / 110,036 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
41.46
prev 40.42
Gamma max
48.75
+17.6% from close
Delta neutral
44.04
+6.2% from close
Gamma neutral
41.86
+1.0% from close
Open interest
235,860
-21.0% vs prev
Contracts listed
495
292 calls · 242 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
68.0
cross-sectional score / 100
Directional score
-14.3
mixed positioning
IV rank
100.0
within trailing 52-week range
Front IV premium
6.5 pp
front minus back volatility difference
25Δ risk reversal
3.4 pp
put IV minus call IV
IV butterfly
-3.2 pp
front-window smile convexity
Volume / open interest
0.21
65,424 contracts traded
Normalized net delta
-0.020
option-holder convention
Modeled dealer delta
0.020
opposite-side scenario
Vanna / 100k OI
2,953
volatility-sensitive delta
Charm / 100k OI
-71,014
time-decay-sensitive delta
IV surface range
156.0 pp
aggregate volatility dispersion

Strongest relative signals: volume/OI 0.21 · IV rank 100 · front IV premium 6.5 pp

Download the dated aggregate analysis JSON .

AA closed 17.6% below its gamma max of 48.75. It is 6.2% below the delta neutral price of 44.04. Total open interest is 235,860, -21.0% versus the previous session. Its options catalyst-intensity score is 68.0 out of 100, led by volume/OI 0.21, IV rank 100, front IV premium 6.5 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.

AA call and put open interest changes
Measure Value
Call OI change, 1 session -46,749 contracts · -29.8%
Put OI change, 1 session -15,934 contracts · -11.2%
Call minus put OI growth, 1 session -18.6 pp
Call OI change, 5 sessions -25,959 contracts · -19.1%
Put OI change, 5 sessions -9,932 contracts · -7.3%
Call minus put OI growth, 5 sessions -11.8 pp
Daily call OI change surprise -3.90σ (252 prior changes)
Daily put OI change surprise -1.76σ (252 prior changes)
Daily call-minus-put growth surprise -4.16σ (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 49 completed Day +10 paths · latest Aug 12, 2026
AA 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. -24.0% -12.0% 0% +12.0% +24.0% Cross on Jan 13, 2021 Cross on Jan 15, 2021 Cross on Feb 18, 2021 Cross on Mar 22, 2021 Cross on Apr 20, 2021 Cross on Apr 28, 2021 Cross on May 3, 2021 Cross on May 6, 2021 Cross on May 11, 2021 Cross on Jun 2, 2021 Cross on Jun 25, 2021 Cross on Jul 27, 2021 Cross on Jul 30, 2021 Cross on Aug 17, 2021 Cross on Sep 13, 2021 Cross on Sep 16, 2021 Cross on Oct 18, 2021 Cross on Dec 23, 2021 Cross on Jan 4, 2022 Cross on Feb 10, 2022 Cross on Feb 15, 2022 Cross on Feb 18, 2022 Cross on Mar 22, 2022 Cross on Mar 25, 2022 Cross on Mar 6, 2023 Cross on Dec 20, 2023 Cross on Mar 8, 2024 Cross on Mar 12, 2024 Cross on Mar 14, 2024 Cross on Mar 28, 2024 Cross on Apr 4, 2024 Cross on May 14, 2024 Cross on Sep 27, 2024 Cross on May 13, 2025 Cross on May 15, 2025 Cross on Jul 3, 2025 Cross on Oct 9, 2025 Cross on Oct 24, 2025 Cross on Nov 28, 2025 Cross on Dec 4, 2025 Cross on Dec 12, 2025 Cross on Dec 26, 2025 Cross on Jan 7, 2026 Cross on Jan 13, 2026 Cross on Apr 2, 2026 Cross on May 22, 2026 Cross on May 27, 2026 Cross on Jun 4, 2026 Cross on Aug 12, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
AA historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 49 +0.5% -1.9% to +2.6% 51% -0.8% to +1.4% 0.0%
Day +2 49 +0.6% -2.1% to +2.9% 57% -0.3% to +1.1% 0.0%
Day +3 49 +0.5% -3.4% to +4.0% 59% -1.2% to +2.4% 0.0%
Day +4 49 +0.7% -2.3% to +4.4% 55% -1.0% to +3.0% 0.0%
Day +5 49 +0.8% -1.9% to +7.3% 61% -0.2% to +2.9% 0.0%
Day +6 49 +1.3% -2.8% to +7.1% 57% -1.2% to +2.6% 0.0%
Day +7 49 +1.2% -4.3% to +5.3% 57% -1.4% to +4.1% 0.0%
Day +8 49 +0.8% -3.6% to +6.0% 55% -1.3% to +5.0% 0.0%
Day +9 49 +1.1% -5.7% to +6.4% 55% -1.4% to +4.4% 0.0%
Day +10 49 +3.7% -8.2% to +8.5% 57% -2.4% to +5.1% 0.0%
Crosses above gamma max 48 completed Day +10 paths · latest Aug 10, 2026
AA 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. -22.0% -11.0% 0% +11.0% +22.0% Cross on Jan 6, 2021 Cross on Jan 14, 2021 Cross on Feb 16, 2021 Cross on Feb 19, 2021 Cross on Apr 16, 2021 Cross on Apr 23, 2021 Cross on Apr 30, 2021 Cross on May 4, 2021 Cross on May 7, 2021 Cross on Jun 1, 2021 Cross on Jun 24, 2021 Cross on Jul 26, 2021 Cross on Jul 29, 2021 Cross on Aug 10, 2021 Cross on Sep 10, 2021 Cross on Sep 15, 2021 Cross on Oct 15, 2021 Cross on Dec 21, 2021 Cross on Dec 31, 2021 Cross on Feb 8, 2022 Cross on Feb 11, 2022 Cross on Feb 16, 2022 Cross on Mar 21, 2022 Cross on Mar 23, 2022 Cross on Apr 13, 2022 Cross on Mar 2, 2023 Cross on Dec 19, 2023 Cross on Mar 7, 2024 Cross on Mar 11, 2024 Cross on Mar 13, 2024 Cross on Mar 27, 2024 Cross on Apr 3, 2024 Cross on May 13, 2024 Cross on Sep 26, 2024 Cross on May 14, 2025 Cross on Jul 1, 2025 Cross on Oct 8, 2025 Cross on Nov 26, 2025 Cross on Dec 3, 2025 Cross on Dec 11, 2025 Cross on Dec 19, 2025 Cross on Jan 2, 2026 Cross on Jan 12, 2026 Cross on Apr 1, 2026 Cross on May 21, 2026 Cross on May 26, 2026 Cross on May 29, 2026 Cross on Aug 10, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
AA historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 48 -0.0% -1.8% to +2.3% 48% -0.6% to +1.1% 0.0%
Day +2 48 -0.1% -1.9% to +2.4% 48% -0.9% to +0.7% 0.0%
Day +3 48 +0.5% -2.2% to +4.7% 52% -1.3% to +3.1% 0.0%
Day +4 48 -0.3% -3.0% to +4.3% 44% -1.0% to +1.4% 0.0%
Day +5 48 +1.2% -3.9% to +5.6% 56% -2.2% to +2.0% 0.0%
Day +6 48 +1.2% -2.8% to +6.2% 58% -0.7% to +3.6% 0.0%
Day +7 48 +1.7% -5.2% to +4.7% 58% -2.9% to +3.1% 0.0%
Day +8 48 -0.3% -4.1% to +6.5% 46% -1.6% to +2.8% 0.0%
Day +9 48 +0.4% -6.0% to +5.9% 52% -2.3% to +4.3% 0.0%
Day +10 48 +1.1% -5.7% to +6.7% 52% -3.8% to +4.0% 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

AA trailing historical statistics
Sessions closed above gamma max 9%
Gamma max crosses 24
Delta neutral crosses 3
Prior-year sessions closer to gamma max 81.3% of 252
Prior-year sessions closer to delta neutral 36.9% of 252
Open interest percentile (1y) 12th
Daily open interest change versus prior year -3.12σ (-62,683 contracts; 252 prior changes)
Open interest change, 5 sessions -13.2%
Open interest change, 21 sessions -9.5%
History available Dec 1, 2020 → Oct 16, 2026

Recent crosses

  1. closed below delta neutral at 46.95 vs 47.75 (-1.7%)
  2. closed below gamma max at 51.22 vs 54.42 (-6.3%)
  3. closed above gamma max at 51.63 vs 51.40 (+0.5%)
  4. closed above delta neutral at 46.84 vs 46.04 (+1.7%)
  5. closed below delta neutral at 59.47 vs 61.63 (-3.6%)
  6. closed below gamma max at 78.03 vs 80.01 (-2.5%)
  7. closed above gamma max at 77.25 vs 77.22 (+0.0%)
  8. closed below gamma max at 72.89 vs 74.76 (-2.6%)
  9. closed above gamma max at 74.57 vs 74.33 (+0.3%)
  10. closed below gamma max at 71.34 vs 72.53 (-1.7%)

In today's screens

Neighbours by open interest

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

Questions people ask about AA

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

As of Oct 16, 2026 close, nearest-expiration max pain is 41.00 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 AA's gamma exposure and gamma flip show?

Signed net GEX is -540,781 as of Oct 16, 2026 close. The confirmed GEX flip is 41.86. 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 AA's gamma max today?

As of Oct 16, 2026, the gamma max for AA is 48.75, +17.6% from the 41.46 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 AA above or below its delta neutral price?

AA closed below delta neutral: 41.46 against a delta neutral price of 44.04. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does AA have?

235,860 contracts of open interest across 495 listed contracts on Oct 16, 2026, -21.0% 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.