IBRX max pain, gamma exposure (GEX) & options open interest
As of close · rank #163 by open interest · 1,223 sessions of history since Mar 10, 2021
IBRX's nearest-expiration max pain is 8.00 for 2026-10-09, net GEX is 7,515,454, its put/call open-interest ratio is 0.38. 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: front IV premium 13.1 pp · 7d expected move +15.4% · smile convexity -19.3 pp
IBRX closed 3.2% below its gamma max of 10.62. It is 34.9% above the delta neutral price of 6.69. Total open interest is 639,270, -2.9% versus the previous session. Its options catalyst-intensity score is 78.8 out of 100, led by front IV premium 13.1 pp, 7d expected move +15.4%, smile convexity -19.3 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 | -11,581 contracts · -2.4% |
| Put OI change, 1 session | -7,575 contracts · -4.1% |
| Call minus put OI growth, 1 session | +1.7 pp |
| Call OI change, 5 sessions | +1,899 contracts · +0.4% |
| Put OI change, 5 sessions | +4,698 contracts · +2.7% |
| Call minus put OI growth, 5 sessions | -2.3 pp |
| Daily call OI change surprise | -0.65σ (252 prior changes) |
| Daily put OI change surprise | -0.82σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.49σ (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 47 completed Day +10 paths · latest Sep 23, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 48 | -0.8% | -3.0% to +1.6% | 40% | -2.0% to +0.4% | 0.0% |
| Day +2 | 48 | -1.7% | -5.3% to +2.1% | 40% | -3.7% to +0.6% | 0.0% |
| Day +3 | 48 | -1.3% | -5.9% to +2.9% | 44% | -3.4% to +1.3% | 0.0% |
| Day +4 | 48 | -0.9% | -8.6% to +2.0% | 44% | -3.9% to +1.2% | 0.0% |
| Day +5 | 48 | -1.3% | -8.2% to +3.2% | 42% | -5.2% to +1.0% | 0.0% |
| Day +6 | 48 | -1.4% | -9.4% to +3.1% | 38% | -5.4% to +0.5% | 0.0% |
| Day +7 | 48 | -5.8% | -11.0% to +3.8% | 44% | -9.1% to +1.7% | 0.0% |
| Day +8 | 47 | -5.7% | -11.9% to +2.1% | 32% | -8.9% to -3.7% | -3.7% |
| Day +9 | 47 | -2.5% | -13.8% to +7.7% | 34% | -8.9% to -0.9% | -0.9% |
| Day +10 | 47 | -5.2% | -11.2% to +7.1% | 40% | -8.1% to +1.8% | 0.0% |
Crosses above gamma max 42 completed Day +10 paths · latest Sep 22, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 43 | -0.2% | -3.7% to +2.5% | 47% | -2.2% to +0.7% | 0.0% |
| Day +2 | 43 | 0.0% | -5.6% to +4.2% | 47% | -5.0% to +2.9% | 0.0% |
| Day +3 | 43 | -2.2% | -7.4% to +4.1% | 37% | -5.7% to +0.7% | 0.0% |
| Day +4 | 43 | -1.2% | -6.5% to +7.9% | 49% | -4.5% to +2.3% | 0.0% |
| Day +5 | 43 | -2.2% | -7.9% to +5.6% | 44% | -5.7% to +2.2% | 0.0% |
| Day +6 | 43 | -0.7% | -8.3% to +4.1% | 44% | -4.1% to +1.4% | 0.0% |
| Day +7 | 43 | -1.3% | -8.3% to +5.1% | 40% | -4.2% to +0.7% | 0.0% |
| Day +8 | 43 | -1.8% | -8.8% to +9.1% | 44% | -4.0% to +3.9% | 0.0% |
| Day +9 | 42 | -3.9% | -9.7% to +11.0% | 43% | -7.8% to +4.7% | 0.0% |
| Day +10 | 42 | -2.5% | -10.5% to +10.3% | 45% | -7.2% to +4.1% | 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 | 11% |
| Gamma max crosses | 26 |
| Delta neutral crosses | 0 |
| Prior-year sessions closer to gamma max | 18.7% of 252 |
| Prior-year sessions closer to delta neutral | 75.0% of 252 |
| Open interest percentile (1y) | 83th |
| Daily open interest change versus prior year | -0.73σ (-19,156 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +1.0% |
| Open interest change, 21 sessions | +15.9% |
| History available | Mar 10, 2021 → Oct 2, 2026 |
Recent crosses
- closed below gamma max at 8.63 vs 8.95 (-3.7%)
- closed above gamma max at 9.29 vs 9.07 (+2.3%)
- closed below gamma max at 8.48 vs 8.90 (-4.9%)
- closed above gamma max at 8.46 vs 8.28 (+2.1%)
- closed below gamma max at 8.37 vs 8.43 (-0.8%)
- closed above gamma max at 7.91 vs 7.45 (+5.8%)
- closed below gamma max at 8.05 vs 8.49 (-5.5%)
- closed above gamma max at 8.40 vs 8.14 (+3.1%)
- closed below gamma max at 8.76 vs 9.02 (-3.0%)
- closed above gamma max at 8.71 vs 8.25 (+5.3%)
In today's screens
Neighbours by open interest
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Canonical source: https://halfonadouble.com/stock/IBRX
Questions people ask about IBRX
Where is IBRX's gamma max today?
As of Oct 2, 2026, the gamma max for IBRX is 10.62, +3.2% from the 10.28 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 IBRX above or below its delta neutral price?
IBRX closed above delta neutral: 10.28 against a delta neutral price of 6.69. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does IBRX have?
639,270 contracts of open interest across 249 listed contracts on Oct 2, 2026, -2.9% 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.