EIX max pain, gamma exposure (GEX) & options open interest
As of close · rank #466 by open interest · 1,394 sessions of history since Dec 1, 2020
EIX's nearest-expiration max pain is 65.00 for 2026-10-16, its GEX flip is 55.81, net GEX is -1,897,745, its put/call open-interest ratio is 0.85. 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: 25Δ risk reversal -69.7 pp · OI change 0.04σ · volume/OI 0.07
EIX closed 19.0% below its gamma max of 64.11. It is 7.7% below the delta neutral price of 58.03. Total open interest is 163,818, +0.4% versus the previous session. Its options catalyst-intensity score is 64.7 out of 100, led by 25Δ risk reversal -69.7 pp, OI change 0.04σ, volume/OI 0.07. 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 | +334 contracts · +0.4% |
| Put OI change, 1 session | +338 contracts · +0.5% |
| Call minus put OI growth, 1 session | -0.1 pp |
| Call OI change, 5 sessions | +10,620 contracts · +13.6% |
| Put OI change, 5 sessions | +3,396 contracts · +4.7% |
| Call minus put OI growth, 5 sessions | +8.9 pp |
| Daily call OI change surprise | +0.04σ (252 prior changes) |
| Daily put OI change surprise | +0.04σ (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 below gamma max 25 completed Day +10 paths · latest Jul 17, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 25 | +0.2% | -0.6% to +0.9% | 52% | -0.6% to +0.9% | 0.0% |
| Day +2 | 25 | +0.3% | -0.6% to +0.8% | 56% | -0.6% to +0.7% | 0.0% |
| Day +3 | 25 | +0.1% | -1.3% to +1.4% | 52% | -0.9% to +1.3% | 0.0% |
| Day +4 | 25 | +0.8% | -2.2% to +1.6% | 56% | -1.9% to +1.5% | 0.0% |
| Day +5 | 25 | +0.6% | -3.4% to +2.6% | 52% | -1.7% to +2.6% | 0.0% |
| Day +6 | 25 | +0.3% | -2.3% to +2.2% | 52% | -2.2% to +1.8% | 0.0% |
| Day +7 | 25 | +0.5% | -2.4% to +2.6% | 56% | -2.2% to +2.5% | 0.0% |
| Day +8 | 25 | -0.3% | -2.0% to +2.1% | 48% | -2.0% to +1.9% | 0.0% |
| Day +9 | 25 | +0.1% | -1.4% to +2.4% | 52% | -1.1% to +2.3% | 0.0% |
| Day +10 | 25 | +0.9% | -3.1% to +3.3% | 56% | -2.3% to +1.7% | 0.0% |
Crosses above gamma max 25 completed Day +10 paths · latest Jul 16, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 25 | +0.0% | -0.7% to +0.6% | 52% | -0.5% to +0.6% | 0.0% |
| Day +2 | 25 | +0.4% | -1.0% to +0.9% | 52% | -1.0% to +0.9% | 0.0% |
| Day +3 | 25 | +0.5% | -1.0% to +1.6% | 64% | -0.9% to +1.4% | 0.0% |
| Day +4 | 25 | +0.8% | -0.5% to +2.1% | 68% | -0.4% to +2.1% | 0.0% |
| Day +5 | 25 | +0.5% | -0.9% to +2.0% | 56% | -0.7% to +1.9% | 0.0% |
| Day +6 | 25 | +1.3% | -1.7% to +2.4% | 56% | -1.2% to +2.4% | 0.0% |
| Day +7 | 25 | +0.8% | -1.5% to +1.7% | 60% | -1.2% to +1.4% | 0.0% |
| Day +8 | 25 | +0.7% | -1.8% to +3.2% | 64% | -0.6% to +2.5% | 0.0% |
| Day +9 | 25 | +1.4% | -1.2% to +2.8% | 64% | -1.0% to +2.7% | 0.0% |
| Day +10 | 25 | +1.6% | -1.6% to +3.1% | 64% | -1.5% to +3.1% | 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 | 4% |
| Gamma max crosses | 4 |
| Delta neutral crosses | 5 |
| Prior-year sessions closer to gamma max | 89.7% of 252 |
| Prior-year sessions closer to delta neutral | 80.2% of 252 |
| Open interest percentile (1y) | 95th |
| Daily open interest change versus prior year | +0.04σ (672 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +9.4% |
| Open interest change, 21 sessions | -7.8% |
| History available | Dec 1, 2020 → Oct 2, 2026 |
Recent crosses
- closed below delta neutral at 70.17 vs 71.50 (-1.9%)
- closed above delta neutral at 70.68 vs 70.65 (+0.0%)
- closed below delta neutral at 71.46 vs 73.84 (-3.3%)
- closed below gamma max at 77.63 vs 84.97 (-9.4%)
- closed above gamma max at 78.05 vs 77.97 (+0.1%)
- closed above delta neutral at 70.53 vs 69.11 (+2.0%)
- closed below delta neutral at 68.27 vs 69.39 (-1.6%)
- closed below gamma max at 75.20 vs 76.23 (-1.4%)
- closed above gamma max at 65.46 vs 65.39 (+0.1%)
- closed below gamma max at 55.96 vs 56.29 (-0.6%)
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/EIX
Questions people ask about EIX
Where is EIX's gamma max today?
As of Oct 2, 2026, the gamma max for EIX is 64.11, +19.0% from the 53.89 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 EIX above or below its delta neutral price?
EIX closed below delta neutral: 53.89 against a delta neutral price of 58.03. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does EIX have?
163,818 contracts of open interest across 228 listed contracts on Oct 2, 2026, +0.4% 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.