Data through close

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

As of close · rank #353 by open interest · 1,404 sessions of history since Dec 1, 2020

PAA's nearest-expiration max pain is 26.00 for 2026-10-23, its GEX flip is 17.15, net GEX is 40,902,130, its put/call open-interest ratio is 0.18. These are whole-chain derived aggregates as of Oct 16, 2026 close.

PAA 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
26.00
+3.0% from close
Expiry: 2026-10-23
GEX flip
17.15
-32.1% from close
Net GEX
40,902,130
17,582,256 per 100k OI
Call wall
25.00
-1.0% from close
Put wall
25.00
-1.0% from close
Put/call OI
0.18
35,344 puts / 197,289 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
25.25
prev 25.15
Gamma max
24.03
-4.8% from close
Delta neutral
20.65
-18.2% from close
Gamma neutral
17.15
-32.1% from close
Open interest
232,633
-2.2% vs prev
Contracts listed
224
125 calls · 144 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
62.4
cross-sectional score / 100
Directional score
34.8
relatively bullish positioning
IV rank
81.7
within trailing 52-week range
Front IV premium
17.8 pp
front minus back volatility difference
25Δ risk reversal
-5.5 pp
put IV minus call IV
IV butterfly
14.2 pp
front-window smile convexity
Volume / open interest
0.04
9,186 contracts traded
Normalized net delta
0.435
option-holder convention
Modeled dealer delta
-0.391
opposite-side scenario
Vanna / 100k OI
722
volatility-sensitive delta
Charm / 100k OI
-104,028
time-decay-sensitive delta
IV surface range
214.6 pp
aggregate volatility dispersion

Strongest relative signals: front IV premium 17.8 pp · smile convexity 14.2 pp

Download the dated aggregate analysis JSON .

PAA closed 4.8% above its gamma max of 24.03. It is 18.2% above the delta neutral price of 20.65. Total open interest is 232,633, -2.2% versus the previous session. Its options catalyst-intensity score is 62.4 out of 100, led by front IV premium 17.8 pp, smile convexity 14.2 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.

PAA call and put open interest changes
Measure Value
Call OI change, 1 session -117 contracts · -0.1%
Put OI change, 1 session -5,025 contracts · -12.4%
Call minus put OI growth, 1 session +12.4 pp
Call OI change, 5 sessions +3,822 contracts · +2.0%
Put OI change, 5 sessions -4,601 contracts · -11.5%
Call minus put OI growth, 5 sessions +13.5 pp
Daily call OI change surprise -0.02σ (252 prior changes)
Daily put OI change surprise -2.18σ (252 prior changes)
Daily call-minus-put growth surprise +1.48σ (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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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 above gamma max 71 completed Day +10 paths · latest Aug 20, 2026
PAA 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. -8.0% -4.0% 0% +4.0% +8.0% Cross on Sep 15, 2021 Cross on Jan 11, 2022 Cross on Jan 20, 2022 Cross on Jan 26, 2022 Cross on Feb 1, 2022 Cross on Feb 17, 2022 Cross on May 27, 2022 Cross on Jun 1, 2022 Cross on Jul 19, 2022 Cross on Jul 21, 2022 Cross on Aug 5, 2022 Cross on Aug 9, 2022 Cross on Aug 23, 2022 Cross on Sep 14, 2022 Cross on Jan 12, 2023 Cross on Feb 14, 2023 Cross on Feb 23, 2023 Cross on Apr 19, 2023 Cross on May 15, 2023 Cross on May 17, 2023 Cross on May 19, 2023 Cross on Jun 1, 2023 Cross on Jun 5, 2023 Cross on Jun 14, 2023 Cross on Jun 29, 2023 Cross on Aug 8, 2023 Cross on Aug 11, 2023 Cross on Sep 1, 2023 Cross on Sep 14, 2023 Cross on Sep 20, 2023 Cross on Sep 29, 2023 Cross on Oct 20, 2023 Cross on Nov 2, 2023 Cross on Nov 10, 2023 Cross on Dec 14, 2023 Cross on Dec 26, 2023 Cross on Jan 3, 2024 Cross on Jan 11, 2024 Cross on Jan 17, 2024 Cross on Jan 26, 2024 Cross on Feb 16, 2024 Cross on Apr 17, 2024 Cross on Jan 16, 2025 Cross on Jan 24, 2025 Cross on Jul 7, 2025 Cross on Jul 11, 2025 Cross on Dec 1, 2025 Cross on Dec 12, 2025 Cross on Jan 2, 2026 Cross on Jan 8, 2026 Cross on Feb 20, 2026 Cross on Apr 13, 2026 Cross on Apr 24, 2026 Cross on Apr 28, 2026 Cross on May 4, 2026 Cross on May 15, 2026 Cross on Jun 1, 2026 Cross on Jun 10, 2026 Cross on Jul 17, 2026 Cross on Aug 20, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median Most recent 60 paths drawn
PAA historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 71 +0.1% -0.7% to +1.0% 54% -0.5% to +0.4% 0.0%
Day +2 71 +0.6% -0.8% to +1.8% 56% -0.1% to +1.2% 0.0%
Day +3 71 +0.6% -0.9% to +2.0% 61% +0.1% to +1.2% +0.1%
Day +4 71 +0.8% -1.3% to +2.8% 63% +0.1% to +1.4% +0.1%
Day +5 71 +0.6% -1.9% to +2.6% 63% +0.2% to +1.8% +0.2%
Day +6 71 +1.1% -2.1% to +2.8% 63% +0.2% to +1.7% +0.2%
Day +7 71 +0.6% -2.3% to +2.7% 59% -0.2% to +1.8% 0.0%
Day +8 71 +0.8% -1.7% to +3.2% 58% -0.2% to +1.6% 0.0%
Day +9 71 +0.4% -2.0% to +3.3% 56% -0.4% to +1.6% 0.0%
Day +10 71 +0.7% -3.9% to +2.9% 55% -0.5% to +1.2% 0.0%
Crosses below gamma max 69 completed Day +10 paths · latest Jul 31, 2026
PAA 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. -8.0% -4.0% 0% +4.0% +8.0% Cross on Jun 23, 2021 Cross on Jul 6, 2021 Cross on Sep 16, 2021 Cross on Oct 21, 2021 Cross on Jan 19, 2022 Cross on Jan 21, 2022 Cross on Jan 27, 2022 Cross on Feb 8, 2022 Cross on May 31, 2022 Cross on Jun 9, 2022 Cross on Jul 20, 2022 Cross on Jul 22, 2022 Cross on Aug 8, 2022 Cross on Aug 18, 2022 Cross on Aug 30, 2022 Cross on Sep 16, 2022 Cross on Feb 17, 2023 Cross on Feb 24, 2023 Cross on Apr 20, 2023 Cross on May 16, 2023 Cross on May 18, 2023 Cross on May 31, 2023 Cross on Jun 2, 2023 Cross on Jun 12, 2023 Cross on Jun 16, 2023 Cross on Jul 28, 2023 Cross on Aug 10, 2023 Cross on Aug 25, 2023 Cross on Sep 6, 2023 Cross on Sep 15, 2023 Cross on Sep 26, 2023 Cross on Oct 2, 2023 Cross on Oct 24, 2023 Cross on Nov 9, 2023 Cross on Dec 7, 2023 Cross on Dec 15, 2023 Cross on Dec 29, 2023 Cross on Jan 10, 2024 Cross on Jan 12, 2024 Cross on Jan 19, 2024 Cross on Jan 30, 2024 Cross on Apr 16, 2024 Cross on Apr 19, 2024 Cross on Jan 23, 2025 Cross on Jan 27, 2025 Cross on Jul 8, 2025 Cross on Jul 18, 2025 Cross on Dec 2, 2025 Cross on Dec 16, 2025 Cross on Jan 7, 2026 Cross on Jan 30, 2026 Cross on Apr 10, 2026 Cross on Apr 17, 2026 Cross on Apr 27, 2026 Cross on May 1, 2026 Cross on May 5, 2026 Cross on May 29, 2026 Cross on Jun 9, 2026 Cross on Jun 11, 2026 Cross on Jul 31, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median Most recent 60 paths drawn
PAA historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 69 0.0% -0.7% to +1.2% 49% -0.2% to +0.6% 0.0%
Day +2 69 +0.4% -1.9% to +1.8% 58% -0.2% to +1.1% 0.0%
Day +3 69 +0.6% -1.3% to +2.3% 58% 0.0% to +1.2% 0.0%
Day +4 69 +0.5% -2.6% to +2.7% 55% -0.4% to +0.9% 0.0%
Day +5 69 +0.8% -2.5% to +2.2% 59% -0.1% to +1.4% 0.0%
Day +6 69 +1.1% -2.4% to +2.9% 59% -0.3% to +1.9% 0.0%
Day +7 69 +0.6% -2.6% to +2.6% 58% -0.3% to +1.2% 0.0%
Day +8 69 +0.9% -3.1% to +2.4% 57% -0.8% to +1.4% 0.0%
Day +9 69 +0.4% -3.6% to +3.0% 52% -0.8% to +1.8% 0.0%
Day +10 69 +0.0% -2.9% to +3.5% 51% -1.1% to +1.4% 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

PAA trailing historical statistics
Sessions closed above gamma max 52%
Gamma max crosses 27
Delta neutral crosses 1
Prior-year sessions closer to gamma max 69.4% of 252
Prior-year sessions closer to delta neutral 38.9% of 252
Open interest percentile (1y) 86th
Daily open interest change versus prior year -0.45σ (-5,142 contracts; 252 prior changes)
Open interest change, 5 sessions -0.3%
Open interest change, 21 sessions +4.2%
History available Dec 1, 2020 → Oct 16, 2026

Recent crosses

  1. closed above gamma max at 24.59 vs 24.39 (+0.8%)
  2. closed below gamma max at 24.57 vs 24.60 (-0.1%)
  3. closed above gamma max at 23.87 vs 23.10 (+3.2%)
  4. closed below gamma max at 22.48 vs 22.56 (-0.4%)
  5. closed above gamma max at 22.75 vs 22.47 (+1.2%)
  6. closed below gamma max at 22.47 vs 22.61 (-0.6%)
  7. closed above gamma max at 22.93 vs 22.52 (+1.8%)
  8. closed below gamma max at 22.43 vs 22.46 (-0.1%)
  9. closed above gamma max at 22.90 vs 22.31 (+2.6%)
  10. closed below gamma max at 22.58 vs 22.64 (-0.3%)

In today's screens

Neighbours by open interest

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

Questions people ask about PAA

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

As of Oct 16, 2026 close, nearest-expiration max pain is 26.00 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 PAA's gamma exposure and gamma flip show?

Signed net GEX is 40,902,130 as of Oct 16, 2026 close. The confirmed GEX flip is 17.15. 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 PAA's gamma max today?

As of Oct 16, 2026, the gamma max for PAA is 24.03, -4.8% from the 25.25 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 PAA above or below its delta neutral price?

PAA closed above delta neutral: 25.25 against a delta neutral price of 20.65. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does PAA have?

232,633 contracts of open interest across 224 listed contracts on Oct 16, 2026, -2.2% 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.