Data through close

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

As of close · rank #431 by open interest · 1,404 sessions of history since Dec 1, 2020

ALT's nearest-expiration max pain is 0.50 for 2026-10-23, net GEX is 4,468,497, its put/call open-interest ratio is 0.12. These are whole-chain derived aggregates as of Oct 16, 2026 close.

ALT 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
0.50
-77.3% from close
Expiry: 2026-10-23
GEX flip
–
Net GEX
4,468,497
2,500,628 per 100k OI
Call wall
3.00
+36.4% from close
Put wall
3.00
+36.4% from close
Put/call OI
0.12
19,035 puts / 159,660 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
2.20
prev 2.36
Gamma max
1.65
-24.9% from close
Delta neutral
1.23
-44.0% from close
Gamma neutral
2.20
0.0% from close
Open interest
178,695
-2.6% vs prev
Contracts listed
88
93 calls · 55 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
62.0
cross-sectional score / 100
Directional score
42.2
relatively bullish positioning
IV rank
100.0
within trailing 52-week range
Front IV premium
– pp
front minus back volatility difference
25Δ risk reversal
-28.7 pp
put IV minus call IV
IV butterfly
– pp
front-window smile convexity
Volume / open interest
0.01
2,164 contracts traded
Normalized net delta
0.396
option-holder convention
Modeled dealer delta
-0.394
opposite-side scenario
Vanna / 100k OI
1,224
volatility-sensitive delta
Charm / 100k OI
-50,127
time-decay-sensitive delta
IV surface range
148.1 pp
aggregate volatility dispersion

Strongest relative signals: 25Δ risk reversal -28.7 pp · IV rank 100

Download the dated aggregate analysis JSON .

ALT closed 24.9% above its gamma max of 1.65. It is 44.0% above the delta neutral price of 1.23. That is a fresh cross: the previous close was on the other side of gamma max. Total open interest is 178,695, -2.6% versus the previous session. Its options catalyst-intensity score is 62.0 out of 100, led by 25Δ risk reversal -28.7 pp, IV rank 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.

ALT call and put open interest changes
Measure Value
Call OI change, 1 session -4,517 contracts · -2.8%
Put OI change, 1 session -215 contracts · -1.1%
Call minus put OI growth, 1 session -1.6 pp
Call OI change, 5 sessions -2,226 contracts · -1.4%
Put OI change, 5 sessions -434 contracts · -2.2%
Call minus put OI growth, 5 sessions +0.9 pp
Daily call OI change surprise -0.48σ (252 prior changes)
Daily put OI change surprise -0.06σ (252 prior changes)
Daily call-minus-put growth surprise -0.34σ (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 46 completed Day +10 paths · latest Oct 13, 2026 fresh cross
ALT 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. -32.0% -16.0% 0% +16.0% +32.0% Cross on Jan 22, 2021 Cross on Jan 29, 2021 Cross on Feb 17, 2021 Cross on Jun 23, 2021 Cross on Aug 10, 2021 Cross on Aug 12, 2021 Cross on Aug 26, 2021 Cross on May 12, 2022 Cross on May 26, 2022 Cross on Aug 2, 2022 Cross on Nov 22, 2022 Cross on Nov 30, 2022 Cross on Dec 12, 2022 Cross on Dec 20, 2022 Cross on May 11, 2023 Cross on Aug 28, 2023 Cross on Oct 17, 2023 Cross on Dec 6, 2023 Cross on Jan 9, 2024 Cross on Feb 26, 2024 Cross on Mar 1, 2024 Cross on May 15, 2024 Cross on Sep 20, 2024 Cross on Oct 28, 2024 Cross on Nov 12, 2024 Cross on Nov 20, 2024 Cross on Dec 4, 2024 Cross on Feb 6, 2025 Cross on Apr 22, 2025 Cross on Apr 24, 2025 Cross on May 23, 2025 Cross on Jun 10, 2025 Cross on Oct 30, 2025 Cross on Nov 14, 2025 Cross on Dec 8, 2025 Cross on Jan 22, 2026 Cross on Jan 29, 2026 Cross on Apr 2, 2026 Cross on May 6, 2026 Cross on Jun 30, 2026 Cross on Jul 9, 2026 Cross on Aug 6, 2026 Cross on Aug 10, 2026 Cross on Aug 21, 2026 Cross on Sep 4, 2026 Cross on Sep 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
ALT historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 47 +0.1% -3.4% to +2.9% 51% -1.6% to +2.2% 0.0%
Day +2 47 -1.5% -4.3% to +5.6% 45% -2.9% to +2.0% 0.0%
Day +3 47 -0.3% -5.7% to +5.1% 49% -3.8% to +1.3% 0.0%
Day +4 46 -1.7% -7.5% to +4.0% 46% -4.8% to +1.5% 0.0%
Day +5 46 -3.1% -7.5% to +2.7% 30% -5.2% to -0.3% -0.3%
Day +6 46 +0.1% -8.0% to +7.8% 50% -5.1% to +4.0% 0.0%
Day +7 46 +1.1% -9.1% to +10.4% 54% -5.3% to +4.7% 0.0%
Day +8 46 +0.2% -9.4% to +14.7% 50% -5.3% to +6.2% 0.0%
Day +9 46 +2.8% -9.9% to +14.1% 54% -5.0% to +7.9% 0.0%
Day +10 46 +2.8% -12.4% to +14.2% 52% -8.6% to +9.9% 0.0%
Crosses below gamma max 54 completed Day +10 paths · latest Sep 22, 2026
ALT 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. -48.0% -24.0% 0% +24.0% +48.0% Cross on Dec 3, 2020 Cross on Jan 27, 2021 Cross on Feb 16, 2021 Cross on Feb 18, 2021 Cross on Feb 25, 2021 Cross on Apr 19, 2021 Cross on Jun 22, 2021 Cross on Jun 28, 2021 Cross on Aug 11, 2021 Cross on Sep 14, 2021 Cross on Sep 27, 2021 Cross on Mar 17, 2022 Cross on May 11, 2022 Cross on May 25, 2022 Cross on Jun 15, 2022 Cross on Sep 7, 2022 Cross on Nov 4, 2022 Cross on Nov 23, 2022 Cross on Dec 9, 2022 Cross on Dec 19, 2022 Cross on Apr 27, 2023 Cross on May 12, 2023 Cross on Jun 28, 2023 Cross on Oct 11, 2023 Cross on Nov 7, 2023 Cross on Dec 5, 2023 Cross on Dec 19, 2023 Cross on Jan 5, 2024 Cross on Jan 10, 2024 Cross on Feb 7, 2024 Cross on Feb 29, 2024 Cross on Mar 4, 2024 Cross on Apr 2, 2024 Cross on Sep 24, 2024 Cross on Oct 30, 2024 Cross on Nov 15, 2024 Cross on Nov 26, 2024 Cross on Dec 5, 2024 Cross on Apr 23, 2025 Cross on May 27, 2025 Cross on Jun 11, 2025 Cross on Oct 31, 2025 Cross on Dec 2, 2025 Cross on Dec 10, 2025 Cross on Jan 28, 2026 Cross on Feb 3, 2026 Cross on Apr 6, 2026 Cross on Jul 7, 2026 Cross on Jul 10, 2026 Cross on Aug 7, 2026 Cross on Aug 11, 2026 Cross on Aug 24, 2026 Cross on Sep 9, 2026 Cross on Sep 22, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
ALT historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 54 -0.4% -2.4% to +2.7% 39% -1.7% to +0.3% 0.0%
Day +2 54 -0.6% -4.3% to +5.3% 48% -2.4% to +1.8% 0.0%
Day +3 54 -0.2% -6.5% to +5.0% 50% -2.8% to +2.0% 0.0%
Day +4 54 -2.6% -7.9% to +4.6% 41% -5.3% to +0.6% 0.0%
Day +5 54 -3.1% -10.6% to +7.9% 39% -6.0% to +0.2% 0.0%
Day +6 54 -2.9% -12.0% to +6.8% 35% -8.3% to -0.4% -0.4%
Day +7 54 -2.3% -13.5% to +11.8% 39% -7.5% to +2.1% 0.0%
Day +8 54 -4.3% -14.4% to +10.5% 43% -9.6% to +3.7% 0.0%
Day +9 54 -5.6% -17.3% to +10.8% 44% -10.8% to +1.8% 0.0%
Day +10 54 -5.7% -17.8% to +10.8% 44% -10.8% to +3.7% 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

ALT trailing historical statistics
Sessions closed above gamma max 16%
Gamma max crosses 33
Delta neutral crosses 0
Prior-year sessions closer to gamma max 94.4% of 252
Prior-year sessions closer to delta neutral 43.7% of 252
Open interest percentile (1y) 67th
Daily open interest change versus prior year -0.41σ (-4,732 contracts; 252 prior changes)
Open interest change, 5 sessions -1.5%
Open interest change, 21 sessions -5.5%
History available Dec 1, 2020 → Oct 16, 2026

Recent crosses

  1. closed above gamma max at 2.20 vs 1.65 (+24.9%)
  2. closed below gamma max at 2.36 vs 2.37 (-0.4%)
  3. closed above gamma max at 2.43 vs 2.36 (+3.1%)
  4. closed below gamma max at 2.86 vs 3.06 (-7.1%)
  5. closed above gamma max at 2.97 vs 0.50 (+83.2%)
  6. closed below gamma max at 3.41 vs 3.44 (-0.8%)
  7. closed above gamma max at 3.24 vs 3.21 (+0.8%)
  8. closed below gamma max at 3.35 vs 3.43 (-2.4%)
  9. closed above gamma max at 3.42 vs 3.42 (+0.1%)
  10. closed below gamma max at 3.11 vs 3.11 (-0.1%)

In today's screens

Neighbours by open interest

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

Questions people ask about ALT

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

As of Oct 16, 2026 close, nearest-expiration max pain is 0.50 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 ALT's gamma exposure and gamma flip show?

Signed net GEX is 4,468,497 as of Oct 16, 2026 close. No confirmed GEX flip is available; this does not imply a zero exposure level. 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 ALT's gamma max today?

As of Oct 16, 2026, the gamma max for ALT is 1.65, -24.9% from the 2.20 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 ALT above or below its delta neutral price?

ALT closed above delta neutral: 2.20 against a delta neutral price of 1.23. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does ALT have?

178,695 contracts of open interest across 88 listed contracts on Oct 16, 2026, -2.6% 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.