Data through close

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

As of close · rank #407 by open interest · 1,168 sessions of history since Oct 25, 2021

GTLB's nearest-expiration max pain is 48.00 for 2026-10-09, its GEX flip is 34.30, net GEX is 6,958,511, its put/call open-interest ratio is 0.65. These are whole-chain derived aggregates as of Oct 2, 2026 close.

Close
49.78
prev 49.95
Gamma max
52.60
+5.7% from close
Delta neutral
39.33
-21.0% from close
Gamma neutral
34.30
-31.1% from close
Open interest
198,756
-4.8% vs prev
Contracts listed
469
338 calls · 248 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
48.00
-3.6% from close
2026-10-09
GEX flip
34.30
-31.1% from close
Net GEX
6,958,511
3,501,032 per 100k OI
Call wall
50.00
+0.4% from close
Put wall
27.50
-44.8% from close
Put/call OI
0.65
78,513 puts / 120,243 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
62.0
cross-sectional score / 100
Directional score
7.2
mixed positioning
IV rank
64.6
within trailing 52-week range
Front / back ATM IV
+55.5% / +54.6%
1.0 pp front premium
Expected move
+7.7%
7 DTE · one standard deviation
ATM straddle / spot
+5.1%
front-window midpoint premium
25Δ risk reversal
-2.6 pp
put IV minus call IV
IV butterfly
47.9 pp
front-window smile convexity
Volume / open interest
0.04
8,131 contracts traded
Normalized net delta
0.230
option-holder convention
Modeled dealer delta
-0.223
opposite-side scenario
Vanna / 100k OI
3,112
volatility-sensitive delta
Charm / 100k OI
-325,746
time-decay-sensitive delta
IV surface range
165.7 pp
published contour maximum minus minimum

Strongest relative signals: smile convexity 47.9 pp · front IV premium 1.0 pp

Download the complete dated analysis JSON .

GTLB closed 5.7% below its gamma max of 52.60. It is 21.0% above the delta neutral price of 39.33. Total open interest is 198,756, -4.8% versus the previous session. Its options catalyst-intensity score is 62.0 out of 100, led by smile convexity 47.9 pp, front IV premium 1.0 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.

GTLB call and put open interest changes
Measure Value
Call OI change, 1 session -9,828 contracts · -7.6%
Put OI change, 1 session -276 contracts · -0.4%
Call minus put OI growth, 1 session -7.2 pp
Call OI change, 5 sessions -2,773 contracts · -2.3%
Put OI change, 5 sessions -1,569 contracts · -2.0%
Call minus put OI growth, 5 sessions -0.3 pp
Daily call OI change surprise -0.86σ (252 prior changes)
Daily put OI change surprise -0.09σ (252 prior changes)
Daily call-minus-put growth surprise -1.45σ (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

Chart loads when this section is in view.

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 26 completed Day +10 paths · latest Sep 14, 2026
GTLB 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. -16.0% -8.0% 0% +8.0% +16.0% Cross on Jun 3, 2022 Cross on Jun 27, 2022 Cross on Jul 6, 2022 Cross on Jul 8, 2022 Cross on Aug 8, 2022 Cross on Aug 16, 2022 Cross on Feb 3, 2023 Cross on Dec 15, 2023 Cross on Jan 23, 2024 Cross on Jan 31, 2024 Cross on Feb 13, 2024 Cross on Feb 15, 2024 Cross on Oct 11, 2024 Cross on Nov 15, 2024 Cross on Nov 26, 2024 Cross on Dec 5, 2024 Cross on Jan 17, 2025 Cross on Jan 22, 2025 Cross on Jan 29, 2025 Cross on Feb 3, 2025 Cross on Jul 24, 2025 Cross on Aug 29, 2025 Cross on May 21, 2026 Cross on Aug 21, 2026 Cross on Aug 28, 2026 Cross on Sep 14, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
GTLB historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 26 +0.3% -1.6% to +1.9% 54% -1.0% to +1.7% 0.0%
Day +2 26 +1.0% -1.0% to +2.5% 58% -0.6% to +2.0% 0.0%
Day +3 26 +0.7% -3.2% to +2.0% 54% -1.5% to +1.5% 0.0%
Day +4 26 -0.1% -3.7% to +4.0% 46% -3.2% to +2.8% 0.0%
Day +5 26 +1.2% -2.0% to +7.1% 65% -0.3% to +5.0% 0.0%
Day +6 26 +1.0% -3.5% to +4.8% 62% -0.9% to +3.8% 0.0%
Day +7 26 +0.9% -2.0% to +8.9% 62% -0.7% to +3.3% 0.0%
Day +8 26 +1.9% -2.4% to +6.3% 58% -1.3% to +3.9% 0.0%
Day +9 26 +1.3% -4.7% to +5.9% 58% -2.7% to +4.7% 0.0%
Day +10 26 +0.4% -5.6% to +5.0% 54% -1.1% to +4.1% 0.0%
Crosses above gamma max 25 completed Day +10 paths · latest Sep 11, 2026
GTLB 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. -14.0% -7.0% 0% +7.0% +14.0% Cross on Jun 23, 2022 Cross on Jul 5, 2022 Cross on Jul 7, 2022 Cross on Aug 5, 2022 Cross on Aug 10, 2022 Cross on Feb 1, 2023 Cross on Dec 13, 2023 Cross on Jan 19, 2024 Cross on Jan 29, 2024 Cross on Feb 7, 2024 Cross on Feb 14, 2024 Cross on Oct 10, 2024 Cross on Nov 6, 2024 Cross on Nov 20, 2024 Cross on Dec 4, 2024 Cross on Jan 16, 2025 Cross on Jan 21, 2025 Cross on Jan 28, 2025 Cross on Jan 31, 2025 Cross on Jul 23, 2025 Cross on Aug 27, 2025 Cross on May 20, 2026 Cross on Aug 11, 2026 Cross on Aug 27, 2026 Cross on Sep 11, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
GTLB historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 25 +0.1% -2.1% to +2.7% 60% -1.8% to +1.6% 0.0%
Day +2 25 +0.9% -1.7% to +1.9% 60% -0.9% to +1.7% 0.0%
Day +3 25 +0.1% -1.3% to +0.9% 60% -0.8% to +0.6% 0.0%
Day +4 25 -0.6% -2.8% to +0.2% 28% -1.8% to -0.0% -0.0%
Day +5 25 -1.4% -4.7% to +1.8% 48% -4.6% to +1.5% 0.0%
Day +6 25 +0.9% -4.7% to +2.7% 56% -3.6% to +2.6% 0.0%
Day +7 25 -0.1% -4.0% to +3.9% 48% -2.4% to +2.7% 0.0%
Day +8 25 -0.4% -3.5% to +3.5% 44% -3.0% to +3.4% 0.0%
Day +9 25 -0.9% -2.7% to +5.6% 44% -2.6% to +5.5% 0.0%
Day +10 25 -1.1% -5.8% to +5.2% 40% -4.3% to +4.9% 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

GTLB trailing historical statistics
Sessions closed above gamma max 4%
Gamma max crosses 8
Delta neutral crosses 22
Prior-year sessions closer to gamma max 16.3% of 252
Prior-year sessions closer to delta neutral 89.7% of 252
Open interest percentile (1y) 6th
Daily open interest change versus prior year -0.70σ (-10,104 contracts; 252 prior changes)
Open interest change, 5 sessions -2.1%
Open interest change, 21 sessions -23.8%
History available Oct 25, 2021 → Oct 2, 2026

Recent crosses

  1. closed below gamma max at 49.25 vs 52.21 (-6.0%)
  2. closed above gamma max at 46.99 vs 46.88 (+0.2%)
  3. closed below gamma max at 44.87 vs 47.14 (-5.0%)
  4. closed above gamma max at 44.81 vs 44.62 (+0.4%)
  5. closed below gamma max at 41.67 vs 42.42 (-1.8%)
  6. closed above gamma max at 42.11 vs 40.64 (+3.5%)
  7. closed below gamma max at 25.62 vs 26.07 (-1.7%)
  8. closed above gamma max at 26.70 vs 26.40 (+1.1%)
  9. closed above delta neutral at 23.66 vs 21.15 (+10.6%)
  10. closed below delta neutral at 22.05 vs 22.14 (-0.4%)

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.

Open share image

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

Questions people ask about GTLB

Where is GTLB's gamma max today?

As of Oct 2, 2026, the gamma max for GTLB is 52.60, +5.7% from the 49.78 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 GTLB above or below its delta neutral price?

GTLB closed above delta neutral: 49.78 against a delta neutral price of 39.33. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does GTLB have?

198,756 contracts of open interest across 469 listed contracts on Oct 2, 2026, -4.8% 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.