Data through close

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

As of close · rank #373 by open interest · 1,252 sessions of history since Jul 12, 2021

S's nearest-expiration max pain is 25.00 for 2026-10-23, its GEX flip is 13.14, net GEX is 8,826,828, its put/call open-interest ratio is 0.30. These are whole-chain derived aggregates as of Oct 16, 2026 close.

S 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
25.00
+15.8% from close
Expiry: 2026-10-23
GEX flip
13.14
-39.1% from close
Net GEX
8,826,828
4,081,317 per 100k OI
Call wall
25.00
+15.8% from close
Put wall
25.00
+15.8% from close
Put/call OI
0.30
50,193 puts / 166,081 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
21.58
prev 23.37
Gamma max
24.75
+14.7% from close
Delta neutral
17.92
-17.0% from close
Gamma neutral
13.14
-39.1% from close
Open interest
216,274
-12.3% vs prev
Contracts listed
383
241 calls · 206 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
41.8
cross-sectional score / 100
Directional score
19.4
relatively bullish positioning
IV rank
54.2
within trailing 52-week range
Front IV premium
1.7 pp
front minus back volatility difference
25Δ risk reversal
0.6 pp
put IV minus call IV
IV butterfly
-6.8 pp
front-window smile convexity
Volume / open interest
0.08
20,150 contracts traded
Normalized net delta
0.172
option-holder convention
Modeled dealer delta
-0.168
opposite-side scenario
Vanna / 100k OI
1,635
volatility-sensitive delta
Charm / 100k OI
335,310
time-decay-sensitive delta
IV surface range
98.8 pp
aggregate volatility dispersion

Strongest relative signals: volume/OI 0.08

Download the dated aggregate analysis JSON .

S closed 14.7% below its gamma max of 24.75. It is 17.0% above the delta neutral price of 17.92. Total open interest is 216,274, -12.3% versus the previous session. Its options catalyst-intensity score is 41.8 out of 100, led by volume/OI 0.08. 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.

S call and put open interest changes
Measure Value
Call OI change, 1 session -17,308 contracts · -9.4%
Put OI change, 1 session -13,047 contracts · -20.6%
Call minus put OI growth, 1 session +11.2 pp
Call OI change, 5 sessions -7,175 contracts · -4.1%
Put OI change, 5 sessions -4,700 contracts · -8.6%
Call minus put OI growth, 5 sessions +4.4 pp
Daily call OI change surprise -1.26σ (252 prior changes)
Daily put OI change surprise -3.36σ (252 prior changes)
Daily call-minus-put growth surprise +3.11σ (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 below gamma max 41 completed Day +10 paths · latest Oct 13, 2026
S 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. -18.0% -9.0% 0% +9.0% +18.0% Cross on Aug 30, 2021 Cross on Nov 10, 2021 Cross on Nov 19, 2021 Cross on Mar 21, 2022 Cross on Mar 25, 2022 Cross on Feb 3, 2023 Cross on Feb 8, 2023 Cross on Feb 21, 2023 Cross on Sep 6, 2023 Cross on Dec 5, 2023 Cross on Dec 14, 2023 Cross on Jan 3, 2024 Cross on Jan 31, 2024 Cross on Feb 5, 2024 Cross on Feb 12, 2024 Cross on Feb 22, 2024 Cross on Mar 8, 2024 Cross on Oct 17, 2024 Cross on Nov 8, 2024 Cross on Nov 14, 2024 Cross on Nov 22, 2024 Cross on Jan 24, 2025 Cross on Jan 29, 2025 Cross on May 13, 2025 Cross on Jul 22, 2025 Cross on Dec 31, 2025 Cross on Apr 17, 2026 Cross on Apr 22, 2026 Cross on May 11, 2026 Cross on May 19, 2026 Cross on May 27, 2026 Cross on Jul 2, 2026 Cross on Jul 10, 2026 Cross on Jul 15, 2026 Cross on Aug 6, 2026 Cross on Aug 12, 2026 Cross on Aug 18, 2026 Cross on Aug 24, 2026 Cross on Aug 28, 2026 Cross on Sep 18, 2026 Cross on Oct 2, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
S historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 42 +0.4% -2.2% to +2.6% 55% -1.3% to +1.9% 0.0%
Day +2 42 +1.5% -1.4% to +3.5% 62% -0.1% to +3.0% 0.0%
Day +3 42 +1.0% -0.6% to +4.0% 62% 0.0% to +1.7% 0.0%
Day +4 41 +1.5% -1.7% to +5.6% 63% -0.6% to +3.5% 0.0%
Day +5 41 +2.1% -3.4% to +5.4% 59% -1.2% to +4.2% 0.0%
Day +6 41 +1.0% -3.5% to +4.7% 59% -0.9% to +2.8% 0.0%
Day +7 41 +1.0% -4.7% to +4.5% 63% -0.6% to +2.2% 0.0%
Day +8 41 -1.8% -6.8% to +5.6% 49% -4.2% to +4.0% 0.0%
Day +9 41 +0.2% -6.3% to +3.0% 51% -4.3% to +2.0% 0.0%
Day +10 41 +0.9% -7.0% to +4.8% 54% -4.7% to +3.0% 0.0%
Crosses above gamma max 44 completed Day +10 paths · latest Oct 5, 2026
S 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. -20.0% -10.0% 0% +10.0% +20.0% Cross on Aug 27, 2021 Cross on Sep 16, 2021 Cross on Nov 9, 2021 Cross on Nov 11, 2021 Cross on Mar 18, 2022 Cross on Mar 22, 2022 Cross on Feb 1, 2023 Cross on Feb 7, 2023 Cross on Feb 14, 2023 Cross on May 24, 2023 Cross on Sep 5, 2023 Cross on Nov 29, 2023 Cross on Dec 6, 2023 Cross on Dec 15, 2023 Cross on Jan 29, 2024 Cross on Feb 2, 2024 Cross on Feb 8, 2024 Cross on Feb 21, 2024 Cross on Oct 8, 2024 Cross on Nov 7, 2024 Cross on Nov 13, 2024 Cross on Nov 21, 2024 Cross on Jan 22, 2025 Cross on Jan 28, 2025 Cross on May 12, 2025 Cross on Jul 21, 2025 Cross on Dec 30, 2025 Cross on Jan 14, 2026 Cross on Apr 16, 2026 Cross on Apr 21, 2026 Cross on May 8, 2026 Cross on May 15, 2026 Cross on May 20, 2026 Cross on May 28, 2026 Cross on Jun 29, 2026 Cross on Jul 9, 2026 Cross on Jul 14, 2026 Cross on Aug 3, 2026 Cross on Aug 7, 2026 Cross on Aug 13, 2026 Cross on Aug 19, 2026 Cross on Aug 27, 2026 Cross on Sep 14, 2026 Cross on Oct 1, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
S historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 45 +0.4% -2.0% to +1.5% 53% -1.2% to +1.2% 0.0%
Day +2 45 -0.7% -2.3% to +2.9% 40% -1.5% to +1.7% 0.0%
Day +3 45 -0.1% -2.8% to +3.6% 47% -1.8% to +2.5% 0.0%
Day +4 45 -0.1% -2.2% to +4.8% 49% -0.6% to +3.3% 0.0%
Day +5 45 +0.3% -2.0% to +4.3% 51% -0.6% to +3.0% 0.0%
Day +6 45 +0.8% -5.5% to +5.9% 56% -1.5% to +3.7% 0.0%
Day +7 45 +0.4% -5.0% to +5.1% 53% -2.3% to +3.1% 0.0%
Day +8 45 -0.8% -6.1% to +5.8% 44% -2.7% to +2.0% 0.0%
Day +9 45 -2.1% -9.3% to +5.0% 38% -4.5% to +0.7% 0.0%
Day +10 44 -1.8% -7.7% to +4.7% 39% -6.3% to +0.6% 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

S trailing historical statistics
Sessions closed above gamma max 17%
Gamma max crosses 38
Delta neutral crosses 0
Prior-year sessions closer to gamma max 90.9% of 252
Prior-year sessions closer to delta neutral 35.3% of 252
Open interest percentile (1y) 4th
Daily open interest change versus prior year -1.76σ (-30,355 contracts; 252 prior changes)
Open interest change, 5 sessions -5.2%
Open interest change, 21 sessions -32.2%
History available Jul 12, 2021 → Oct 16, 2026

Recent crosses

  1. closed below gamma max at 24.01 vs 25.38 (-5.7%)
  2. closed above gamma max at 25.43 vs 25.32 (+0.4%)
  3. closed below gamma max at 25.06 vs 25.10 (-0.1%)
  4. closed above gamma max at 24.67 vs 24.59 (+0.3%)
  5. closed below gamma max at 22.51 vs 24.03 (-6.8%)
  6. closed above gamma max at 22.61 vs 21.61 (+4.4%)
  7. closed below gamma max at 21.54 vs 21.71 (-0.8%)
  8. closed above gamma max at 22.71 vs 22.13 (+2.5%)
  9. closed below gamma max at 20.82 vs 21.18 (-1.7%)
  10. closed above gamma max at 21.32 vs 20.09 (+5.7%)

In today's screens

Neighbours by open interest

Cite or embed this snapshot

Share the dated 1600×840 image or cite this canonical page. The card contains public derived aggregates, not contract-level quotes.

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

Questions people ask about S

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

As of Oct 16, 2026 close, nearest-expiration max pain is 25.00 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 S's gamma exposure and gamma flip show?

Signed net GEX is 8,826,828 as of Oct 16, 2026 close. The confirmed GEX flip is 13.14. 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 S's gamma max today?

As of Oct 16, 2026, the gamma max for S is 24.75, +14.7% from the 21.58 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 S above or below its delta neutral price?

S closed above delta neutral: 21.58 against a delta neutral price of 17.92. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does S have?

216,274 contracts of open interest across 383 listed contracts on Oct 16, 2026, -12.3% 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.