Data through close

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

As of close · rank #543 by open interest · 555 sessions of history since Jul 19, 2023

GRRR's nearest-expiration max pain is 14.00 for 2026-10-09, its GEX flip is 14.44, net GEX is -542,325, its put/call open-interest ratio is 1.46. These are whole-chain derived aggregates as of Oct 2, 2026 close.

Close
13.17
prev 13.58
Gamma max
23.12
+75.5% from close
Delta neutral
15.24
+15.7% from close
Gamma neutral
14.44
+9.6% from close
Open interest
131,696
-2.3% vs prev
Contracts listed
219
130 calls · 119 puts

Whole-chain analytics

Derived after the close from the same dated options chain. Signed gamma exposure uses calls positive and puts negative; it is a model convention, not observed dealer inventory.

Nearest max pain
14.00
+6.3% from close
2026-10-09
GEX flip
14.44
+9.6% from close
Net GEX
-542,325
-411,800 per 100k OI
Call wall
30.00
+127.8% from close
Put wall
10.00
-24.1% from close
Put/call OI
1.46
78,163 puts / 53,533 calls

Advanced options analysis

Complete derived 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
55.9
cross-sectional score / 100
Directional score
-43.9
relatively bearish positioning
IV rank
55.0
within trailing 52-week range
Front / back ATM IV
+94.1% / +102.1%
-8.0 pp front premium
Expected move
+13.0%
7 DTE · one standard deviation
ATM straddle / spot
+14.2%
front-window midpoint premium
25Δ risk reversal
123.6 pp
put IV minus call IV
IV butterfly
21.1 pp
front-window smile convexity
Volume / open interest
0.02
2,049 contracts traded
Normalized net delta
-0.019
option-holder convention
Modeled dealer delta
0.019
opposite-side scenario
Vanna / 100k OI
5,838
volatility-sensitive delta
Charm / 100k OI
-34,088
time-decay-sensitive delta
IV surface range
165.9 pp
published contour maximum minus minimum

Strongest relative signals: smile convexity 21.1 pp · 7d expected move +13.0% · 25Δ risk reversal 123.6 pp

Download the complete dated analysis JSON .

GRRR closed 75.5% below its gamma max of 23.12. It is 15.7% below the delta neutral price of 15.24. Total open interest is 131,696, -2.3% versus the previous session. Its options catalyst-intensity score is 55.9 out of 100, led by smile convexity 21.1 pp, 7d expected move +13.0%, 25Δ risk reversal 123.6 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.

GRRR call and put open interest changes
Measure Value
Call OI change, 1 session -2,020 contracts · -3.6%
Put OI change, 1 session -1,134 contracts · -1.4%
Call minus put OI growth, 1 session -2.2 pp
Call OI change, 5 sessions -1,058 contracts · -1.9%
Put OI change, 5 sessions +194 contracts · +0.2%
Call minus put OI growth, 5 sessions -2.2 pp
Daily call OI change surprise -0.63σ (252 prior changes)
Daily put OI change surprise -0.68σ (252 prior changes)
Daily call-minus-put growth surprise -0.09σ (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

Derived from the 2026-10-02 options chain. Select an analysis to explore its chart.

Gamma walls

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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 20 completed Day +10 paths · latest Jul 2, 2026
GRRR 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. -78.0% -39.0% 0% +39.0% +78.0% Cross on Jul 25, 2023 Cross on Jan 8, 2025 Cross on Jan 31, 2025 Cross on Feb 5, 2025 Cross on Feb 11, 2025 Cross on Feb 14, 2025 Cross on Mar 4, 2025 Cross on Jun 5, 2025 Cross on Jun 10, 2025 Cross on Sep 19, 2025 Cross on Oct 7, 2025 Cross on Jan 30, 2026 Cross on Apr 22, 2026 Cross on Apr 27, 2026 Cross on May 5, 2026 Cross on May 12, 2026 Cross on May 18, 2026 Cross on May 22, 2026 Cross on May 27, 2026 Cross on Jul 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
GRRR historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 20 +0.3% -1.9% to +8.7% 55% -1.6% to +8.2% 0.0%
Day +2 20 +1.7% -4.3% to +13.1% 55% -4.1% to +12.8% 0.0%
Day +3 20 -2.1% -9.2% to +13.6% 45% -9.0% to +13.0% 0.0%
Day +4 20 -2.0% -6.0% to +21.6% 45% -5.9% to +19.6% 0.0%
Day +5 20 -5.1% -9.2% to +19.7% 45% -8.9% to +17.4% 0.0%
Day +6 20 -5.4% -11.8% to +19.4% 45% -11.4% to +17.1% 0.0%
Day +7 20 +4.0% -12.4% to +20.6% 55% -11.9% to +18.8% 0.0%
Day +8 20 -3.9% -12.1% to +18.6% 45% -11.8% to +18.5% 0.0%
Day +9 20 +1.0% -13.0% to +17.3% 50% -12.9% to +17.1% 0.0%
Day +10 20 +3.6% -11.0% to +19.6% 50% -11.0% to +19.1% 0.0%
Crosses above gamma max 22 completed Day +10 paths · latest Jul 1, 2026
GRRR 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. -64.0% -32.0% 0% +32.0% +64.0% Cross on Nov 2, 2023 Cross on Jan 7, 2025 Cross on Feb 4, 2025 Cross on Feb 6, 2025 Cross on Feb 12, 2025 Cross on Jun 4, 2025 Cross on Jun 6, 2025 Cross on Jul 9, 2025 Cross on Sep 17, 2025 Cross on Oct 6, 2025 Cross on Dec 4, 2025 Cross on Jan 29, 2026 Cross on Mar 2, 2026 Cross on Apr 14, 2026 Cross on Apr 24, 2026 Cross on Apr 29, 2026 Cross on May 8, 2026 Cross on May 15, 2026 Cross on May 21, 2026 Cross on May 26, 2026 Cross on May 28, 2026 Cross on Jul 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
GRRR historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 22 -1.3% -3.7% to +2.6% 36% -3.4% to +2.1% 0.0%
Day +2 22 -1.2% -5.9% to +9.7% 45% -3.9% to +9.4% 0.0%
Day +3 22 +3.4% -6.5% to +9.5% 59% -6.4% to +9.5% 0.0%
Day +4 22 +3.3% -9.1% to +18.1% 59% -8.4% to +11.3% 0.0%
Day +5 22 +5.4% -8.3% to +22.5% 59% -6.8% to +18.1% 0.0%
Day +6 22 -1.5% -11.7% to +21.2% 50% -11.3% to +15.7% 0.0%
Day +7 22 -1.1% -17.5% to +15.6% 45% -15.9% to +15.4% 0.0%
Day +8 22 -4.6% -15.5% to +9.9% 41% -13.2% to +6.9% 0.0%
Day +9 22 -6.1% -9.9% to +15.7% 41% -9.5% to +11.1% 0.0%
Day +10 22 -2.9% -10.6% to +10.8% 41% -10.2% to +10.6% 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

GRRR trailing historical statistics
Sessions closed above gamma max 10%
Gamma max crosses 26
Delta neutral crosses 21
Prior-year sessions closer to gamma max 97.6% of 252
Prior-year sessions closer to delta neutral 65.9% of 252
Open interest percentile (1y) 95th
Daily open interest change versus prior year -0.70σ (-3,154 contracts; 252 prior changes)
Open interest change, 5 sessions -0.7%
Open interest change, 21 sessions +6.3%
History available Jul 19, 2023 → Oct 2, 2026

Recent crosses

  1. closed below delta neutral at 14.09 vs 14.71 (-4.4%)
  2. closed above delta neutral at 12.04 vs 10.55 (+12.3%)
  3. closed below delta neutral at 11.48 vs 12.74 (-11.0%)
  4. closed below gamma max at 18.51 vs 19.85 (-7.3%)
  5. closed above gamma max at 20.11 vs 19.77 (+1.7%)
  6. closed below gamma max at 18.31 vs 21.15 (-15.5%)
  7. closed above gamma max at 17.74 vs 17.40 (+1.9%)
  8. closed below gamma max at 16.40 vs 16.79 (-2.4%)
  9. closed above gamma max at 16.46 vs 15.54 (+5.6%)
  10. closed below gamma max at 14.53 vs 14.82 (-2.0%)

In today's screens

Neighbours by open interest

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

Questions people ask about GRRR

Where is GRRR's gamma max today?

As of Oct 2, 2026, the gamma max for GRRR is 23.12, +75.5% from the 13.17 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 GRRR above or below its delta neutral price?

GRRR closed below delta neutral: 13.17 against a delta neutral price of 15.24. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does GRRR have?

131,696 contracts of open interest across 219 listed contracts on Oct 2, 2026, -2.3% 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.