SG max pain, gamma exposure (GEX) & options open interest
As of close · rank #323 by open interest · 1,131 sessions of history since Dec 16, 2021
SG's nearest-expiration max pain is 6.50 for 2026-10-09, its GEX flip is 3.54, net GEX is 10,155,582, its put/call open-interest ratio is 0.25. 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: 7d expected move +10.2% · IV rank 90 · 25Δ risk reversal 12.8 pp
SG closed 2.2% above its gamma max of 8.90. It is 34.2% above the delta neutral price of 5.99. Total open interest is 274,118, -1.3% versus the previous session. Its options catalyst-intensity score is 46.9 out of 100, led by 7d expected move +10.2%, IV rank 90, 25Δ risk reversal 12.8 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 | -2,795 contracts · -1.3% |
| Put OI change, 1 session | -915 contracts · -1.6% |
| Call minus put OI growth, 1 session | +0.4 pp |
| Call OI change, 5 sessions | +14,021 contracts · +6.8% |
| Put OI change, 5 sessions | +1,046 contracts · +1.9% |
| Call minus put OI growth, 5 sessions | +4.9 pp |
| Daily call OI change surprise | -0.24σ (252 prior changes) |
| Daily put OI change surprise | -0.17σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.03σ (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 19 completed Day +10 paths · latest Sep 18, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 19 | -0.2% | -3.3% to +2.0% | 42% | -2.7% to +1.9% | 0.0% |
| Day +2 | 19 | -2.1% | -4.6% to +2.5% | 47% | -4.6% to +2.1% | 0.0% |
| Day +3 | 19 | -3.3% | -7.1% to +4.4% | 47% | -6.8% to +4.2% | 0.0% |
| Day +4 | 19 | +0.2% | -10.5% to +5.0% | 53% | -10.3% to +3.7% | 0.0% |
| Day +5 | 19 | +0.6% | -12.7% to +4.2% | 53% | -12.4% to +3.5% | 0.0% |
| Day +6 | 19 | -7.3% | -14.9% to +4.7% | 42% | -13.5% to +4.1% | 0.0% |
| Day +7 | 19 | -5.4% | -15.7% to +7.1% | 42% | -12.0% to +6.2% | 0.0% |
| Day +8 | 19 | -5.8% | -14.3% to +2.8% | 32% | -9.9% to +2.4% | 0.0% |
| Day +9 | 19 | -9.0% | -14.3% to +3.3% | 37% | -14.3% to +2.4% | 0.0% |
| Day +10 | 19 | -9.0% | -17.1% to +4.1% | 37% | -16.8% to +2.6% | 0.0% |
Crosses below gamma max 12 completed Day +10 paths · latest Sep 15, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 12 | +0.5% | -2.0% to +2.7% | 50% | -2.0% to +3.4% | 0.0% |
| Day +2 | 12 | -2.4% | -5.7% to +2.0% | 42% | -7.0% to +2.9% | 0.0% |
| Day +3 | 12 | -3.6% | -9.6% to +5.9% | 50% | -10.2% to +6.6% | 0.0% |
| Day +4 | 12 | -2.7% | -11.2% to +3.4% | 42% | -11.9% to +7.3% | 0.0% |
| Day +5 | 12 | -2.5% | -6.8% to +3.1% | 33% | -7.7% to +10.3% | 0.0% |
| Day +6 | 12 | -0.8% | -9.3% to +2.5% | 50% | -14.8% to +6.4% | 0.0% |
| Day +7 | 12 | -3.5% | -6.9% to +4.0% | 42% | -10.9% to +7.8% | 0.0% |
| Day +8 | 12 | -3.2% | -12.4% to +6.2% | 33% | -12.8% to +6.8% | 0.0% |
| Day +9 | 12 | -1.1% | -13.8% to +2.2% | 42% | -13.9% to +3.9% | 0.0% |
| Day +10 | 12 | -5.5% | -11.2% to +3.3% | 42% | -11.4% to +7.8% | 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 | 13% |
| Gamma max crosses | 19 |
| Delta neutral crosses | 15 |
| Prior-year sessions closer to gamma max | 7.5% of 252 |
| Prior-year sessions closer to delta neutral | 90.9% of 252 |
| Open interest percentile (1y) | 64th |
| Daily open interest change versus prior year | -0.24σ (-3,710 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +5.8% |
| Open interest change, 21 sessions | +4.6% |
| History available | Dec 16, 2021 → Oct 2, 2026 |
Recent crosses
- closed above gamma max at 7.22 vs 7.14 (+1.1%)
- closed below gamma max at 6.83 vs 6.95 (-1.8%)
- closed above gamma max at 7.10 vs 6.77 (+4.7%)
- closed below gamma max at 6.10 vs 7.27 (-19.1%)
- closed above gamma max at 5.71 vs 0.82 (+85.7%)
- closed below gamma max at 6.36 vs 8.34 (-31.2%)
- closed above gamma max at 6.04 vs 0.64 (+89.4%)
- closed below gamma max at 7.08 vs 8.22 (-16.2%)
- closed above gamma max at 6.22 vs 0.85 (+86.3%)
- closed below gamma max at 8.49 vs 8.93 (-5.1%)
In today's screens
Neighbours by open interest
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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/SG
Questions people ask about SG
Where is SG's gamma max today?
As of Oct 2, 2026, the gamma max for SG is 8.90, -2.2% from the 9.10 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 SG above or below its delta neutral price?
SG closed above delta neutral: 9.10 against a delta neutral price of 5.99. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does SG have?
274,118 contracts of open interest across 208 listed contracts on Oct 2, 2026, -1.3% 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.