ALT max pain, gamma exposure (GEX) & options open interest
As of close · rank #445 by open interest · 1,394 sessions of history since Dec 1, 2020
ALT's nearest-expiration max pain is 3.00 for 2026-10-09, net GEX is 4,574,658, its put/call open-interest ratio is 0.11. 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: IV rank 100 · 25Δ risk reversal 124.8 pp
ALT closed 5.4% below its gamma max of 2.88. It is 43.8% above the delta neutral price of 1.54. Total open interest is 174,694, -1.2% versus the previous session. Its options catalyst-intensity score is 61.3 out of 100, led by IV rank 100, 25Δ risk reversal 124.8 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.
| Measure | Value |
|---|---|
| Call OI change, 1 session | -1,868 contracts · -1.2% |
| Put OI change, 1 session | -274 contracts · -1.5% |
| Call minus put OI growth, 1 session | +0.4 pp |
| Call OI change, 5 sessions | +1,041 contracts · +0.7% |
| Put OI change, 5 sessions | +3,896 contracts · +28.7% |
| Call minus put OI growth, 5 sessions | -28.1 pp |
| Daily call OI change surprise | -0.20σ (252 prior changes) |
| Daily put OI change surprise | -0.08σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.05σ (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 below gamma max 53 completed Day +10 paths · latest Sep 22, 2026
| 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 | 53 | -4.4% | -17.3% to +10.9% | 45% | -9.8% to +1.8% | 0.0% |
| Day +10 | 53 | -5.6% | -17.8% to +11.8% | 45% | -10.5% to +3.7% | 0.0% |
Crosses above gamma max 46 completed Day +10 paths · latest Sep 17, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 46 | +0.2% | -3.2% to +2.9% | 52% | -1.6% to +2.2% | 0.0% |
| Day +2 | 46 | -1.4% | -4.3% to +5.9% | 46% | -3.2% to +2.9% | 0.0% |
| Day +3 | 46 | -0.0% | -5.5% to +5.2% | 50% | -3.8% to +1.9% | 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% |
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 | 15% |
| Gamma max crosses | 30 |
| Delta neutral crosses | 0 |
| Prior-year sessions closer to gamma max | 46.0% of 252 |
| Prior-year sessions closer to delta neutral | 45.6% of 252 |
| Open interest percentile (1y) | 61th |
| Daily open interest change versus prior year | -0.18σ (-2,142 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +2.9% |
| Open interest change, 21 sessions | -1.6% |
| History available | Dec 1, 2020 → Oct 2, 2026 |
Recent crosses
- closed below gamma max at 2.86 vs 3.06 (-7.1%)
- closed above gamma max at 2.97 vs 0.50 (+83.2%)
- closed below gamma max at 3.41 vs 3.44 (-0.8%)
- closed above gamma max at 3.24 vs 3.21 (+0.8%)
- closed below gamma max at 3.35 vs 3.43 (-2.4%)
- closed above gamma max at 3.42 vs 3.42 (+0.1%)
- closed below gamma max at 3.11 vs 3.11 (-0.1%)
- closed above gamma max at 3.11 vs 3.09 (+0.6%)
- closed below gamma max at 3.00 vs 3.28 (-9.5%)
- closed above gamma max at 3.05 vs 3.01 (+1.4%)
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.
Canonical source: https://halfonadouble.com/stock/ALT
Questions people ask about ALT
Where is ALT's gamma max today?
As of Oct 2, 2026, the gamma max for ALT is 2.88, +5.4% from the 2.73 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: 2.73 against a delta neutral price of 1.54. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does ALT have?
174,694 contracts of open interest across 109 listed contracts on Oct 2, 2026, -1.2% 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.