GEO max pain, gamma exposure (GEX) & options open interest
As of close · rank #315 by open interest · 1,394 sessions of history since Dec 1, 2020
GEO's nearest-expiration max pain is 29.00 for 2026-10-16, its GEX flip is 18.73, net GEX is 38,198,996, its put/call open-interest ratio is 0.20. These are whole-chain derived aggregates as of Oct 2, 2026 close.
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.
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.
Strongest relative signals: OI change 1.22σ · 14d expected move +9.6%
GEO closed 1.0% above its gamma max of 31.04. It is 23.0% above the delta neutral price of 24.14. Total open interest is 282,477, +7.6% versus the previous session. Its options catalyst-intensity score is 41.6 out of 100, led by OI change 1.22σ, 14d expected move +9.6%. 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.
| Measure | Value |
|---|---|
| Call OI change, 1 session | +17,706 contracts · +8.2% |
| Put OI change, 1 session | +2,149 contracts · +4.7% |
| Call minus put OI growth, 1 session | +3.5 pp |
| Call OI change, 5 sessions | +53,739 contracts · +29.7% |
| Put OI change, 5 sessions | +5,298 contracts · +12.5% |
| Call minus put OI growth, 5 sessions | +17.2 pp |
| Daily call OI change surprise | +1.21σ (252 prior changes) |
| Daily put OI change surprise | +0.95σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.52σ (252 prior changes) |
History
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Analysis visualizations
Derived from the 2026-10-02 options chain. Select an analysis to explore its chart.
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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 above gamma max 51 completed Day +10 paths · latest Oct 1, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 53 | -0.1% | -1.8% to +1.8% | 47% | -1.0% to +1.1% | 0.0% |
| Day +2 | 52 | +0.1% | -2.7% to +2.4% | 52% | -1.5% to +1.2% | 0.0% |
| Day +3 | 52 | +0.3% | -2.6% to +3.1% | 52% | -1.4% to +2.0% | 0.0% |
| Day +4 | 52 | +0.3% | -3.5% to +5.4% | 54% | -2.4% to +2.5% | 0.0% |
| Day +5 | 52 | -0.1% | -2.9% to +4.2% | 44% | -0.7% to +1.6% | 0.0% |
| Day +6 | 52 | +0.6% | -2.8% to +5.1% | 54% | -1.0% to +2.2% | 0.0% |
| Day +7 | 51 | +0.5% | -4.3% to +4.7% | 51% | -1.4% to +2.6% | 0.0% |
| Day +8 | 51 | +1.3% | -3.6% to +5.2% | 53% | -2.2% to +2.9% | 0.0% |
| Day +9 | 51 | +1.6% | -4.6% to +5.1% | 55% | -2.6% to +3.4% | 0.0% |
| Day +10 | 51 | +1.5% | -4.2% to +6.1% | 55% | -2.5% to +3.1% | 0.0% |
Crosses below gamma max 50 completed Day +10 paths · latest Sep 25, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 51 | -0.4% | -1.8% to +1.8% | 37% | -1.0% to 0.0% | 0.0% |
| Day +2 | 51 | +0.7% | -2.7% to +2.6% | 53% | -0.8% to +1.7% | 0.0% |
| Day +3 | 51 | +0.2% | -2.3% to +2.2% | 51% | -0.8% to +1.1% | 0.0% |
| Day +4 | 51 | -0.1% | -2.6% to +2.6% | 45% | -0.9% to +1.0% | 0.0% |
| Day +5 | 51 | +0.7% | -3.4% to +3.0% | 59% | -0.5% to +1.6% | 0.0% |
| Day +6 | 50 | +1.4% | -3.6% to +4.0% | 54% | -1.2% to +2.7% | 0.0% |
| Day +7 | 50 | +1.6% | -3.0% to +5.5% | 60% | -0.3% to +3.4% | 0.0% |
| Day +8 | 50 | +0.8% | -3.3% to +6.0% | 58% | -1.0% to +2.6% | 0.0% |
| Day +9 | 50 | +1.3% | -2.9% to +4.6% | 56% | -1.0% to +2.7% | 0.0% |
| Day +10 | 50 | +2.9% | -1.5% to +5.1% | 62% | -0.0% to +4.0% | 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
| Sessions closed above gamma max | 23% |
| Gamma max crosses | 25 |
| Delta neutral crosses | 14 |
| Prior-year sessions closer to gamma max | 10.3% of 252 |
| Prior-year sessions closer to delta neutral | 52.0% of 252 |
| Open interest percentile (1y) | 75th |
| Daily open interest change versus prior year | +1.22σ (19,855 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +26.4% |
| Open interest change, 21 sessions | +34.5% |
| History available | Dec 1, 2020 → Oct 2, 2026 |
Recent crosses
- closed above gamma max at 30.79 vs 30.79 (+0.0%)
- closed below gamma max at 31.22 vs 31.42 (-0.7%)
- closed above gamma max at 31.96 vs 31.60 (+1.1%)
- closed below gamma max at 31.76 vs 34.20 (-7.7%)
- closed above gamma max at 32.14 vs 31.26 (+2.7%)
- closed below gamma max at 31.81 vs 32.21 (-1.2%)
- closed above gamma max at 32.77 vs 32.46 (+1.0%)
- closed below gamma max at 30.14 vs 30.55 (-1.4%)
- closed above gamma max at 29.46 vs 27.93 (+5.2%)
- closed below gamma max at 29.78 vs 29.88 (-0.3%)
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.
Canonical source: https://halfonadouble.com/stock/GEO
Questions people ask about GEO
Where is GEO's gamma max today?
As of Oct 2, 2026, the gamma max for GEO is 31.04, -1.0% from the 31.36 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 GEO above or below its delta neutral price?
GEO closed above delta neutral: 31.36 against a delta neutral price of 24.14. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does GEO have?
282,477 contracts of open interest across 219 listed contracts on Oct 2, 2026, +7.6% 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.