JOBY max pain, gamma exposure (GEX) & options open interest
As of close · rank #223 by open interest · 1,209 sessions of history since Aug 12, 2021
JOBY's nearest-expiration max pain is 6.50 for 2026-10-09, net GEX is 5,450,535, its put/call open-interest ratio is 0.28. 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
JOBY closed 28.5% below its gamma max of 7.65. It is 9.7% above the delta neutral price of 5.37. Total open interest is 454,539, -4.7% versus the previous session. Its options catalyst-intensity score is 45.2 out of 100, led by IV rank 100. 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 | -15,416 contracts · -4.2% |
| Put OI change, 1 session | -7,251 contracts · -6.8% |
| Call minus put OI growth, 1 session | +2.7 pp |
| Call OI change, 5 sessions | -1,939 contracts · -0.5% |
| Put OI change, 5 sessions | -449 contracts · -0.5% |
| Call minus put OI growth, 5 sessions | -0.1 pp |
| Daily call OI change surprise | -0.73σ (252 prior changes) |
| Daily put OI change surprise | -0.69σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.72σ (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 32 completed Day +10 paths · latest Jun 2, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 32 | +0.2% | -3.8% to +3.4% | 53% | -2.1% to +2.3% | 0.0% |
| Day +2 | 32 | +0.6% | -5.8% to +4.4% | 53% | -5.1% to +2.8% | 0.0% |
| Day +3 | 32 | -0.8% | -5.9% to +5.2% | 41% | -4.4% to +3.7% | 0.0% |
| Day +4 | 32 | -0.4% | -5.3% to +6.3% | 47% | -2.9% to +3.8% | 0.0% |
| Day +5 | 32 | -0.5% | -4.4% to +4.9% | 47% | -3.5% to +3.1% | 0.0% |
| Day +6 | 32 | +1.9% | -5.5% to +9.4% | 59% | -4.3% to +3.3% | 0.0% |
| Day +7 | 32 | -0.4% | -7.0% to +9.7% | 50% | -4.8% to +6.3% | 0.0% |
| Day +8 | 32 | -0.3% | -8.5% to +9.9% | 50% | -4.7% to +8.0% | 0.0% |
| Day +9 | 32 | +2.5% | -5.4% to +10.4% | 56% | -4.5% to +6.8% | 0.0% |
| Day +10 | 32 | +1.2% | -7.7% to +7.5% | 59% | -6.0% to +4.3% | 0.0% |
Crosses above gamma max 30 completed Day +10 paths · latest May 29, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 30 | +0.8% | -3.1% to +3.0% | 57% | -1.4% to +2.6% | 0.0% |
| Day +2 | 30 | +2.0% | -3.8% to +5.6% | 57% | -1.1% to +4.3% | 0.0% |
| Day +3 | 30 | +0.5% | -4.2% to +7.1% | 50% | -1.7% to +4.7% | 0.0% |
| Day +4 | 30 | +0.4% | -6.4% to +9.7% | 50% | -2.4% to +6.5% | 0.0% |
| Day +5 | 30 | +1.7% | -6.2% to +9.4% | 53% | -2.5% to +8.0% | 0.0% |
| Day +6 | 30 | +1.9% | -6.3% to +8.4% | 53% | -3.8% to +5.5% | 0.0% |
| Day +7 | 30 | -1.4% | -5.5% to +13.6% | 47% | -4.2% to +8.4% | 0.0% |
| Day +8 | 30 | +1.9% | -7.0% to +10.4% | 53% | -1.5% to +5.2% | 0.0% |
| Day +9 | 30 | -0.3% | -11.2% to +7.7% | 50% | -7.8% to +3.4% | 0.0% |
| Day +10 | 30 | +2.5% | -9.9% to +12.3% | 53% | -6.3% to +5.4% | 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 | 9 |
| Delta neutral crosses | 12 |
| Prior-year sessions closer to gamma max | 80.6% of 252 |
| Prior-year sessions closer to delta neutral | 42.9% of 252 |
| Open interest percentile (1y) | 39th |
| Daily open interest change versus prior year | -0.75σ (-22,667 contracts; 252 prior changes) |
| Open interest change, 5 sessions | -0.5% |
| Open interest change, 21 sessions | +0.6% |
| History available | Aug 12, 2021 → Oct 2, 2026 |
Recent crosses
- closed below gamma max at 11.86 vs 12.09 (-1.9%)
- closed above gamma max at 11.90 vs 11.72 (+1.5%)
- closed below gamma max at 11.48 vs 12.55 (-9.3%)
- closed above gamma max at 10.92 vs 10.73 (+1.8%)
- closed below gamma max at 10.57 vs 11.43 (-8.2%)
- closed above gamma max at 11.10 vs 11.05 (+0.5%)
- closed below gamma max at 10.52 vs 10.98 (-4.4%)
- closed above gamma max at 10.52 vs 9.80 (+6.9%)
- closed above delta neutral at 8.26 vs 7.89 (+4.5%)
- closed below delta neutral at 7.94 vs 7.95 (-0.2%)
In today's screens
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Neighbours by open interest
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Canonical source: https://halfonadouble.com/stock/JOBY
Questions people ask about JOBY
Where is JOBY's gamma max today?
As of Oct 2, 2026, the gamma max for JOBY is 7.65, +28.5% from the 5.95 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 JOBY above or below its delta neutral price?
JOBY closed above delta neutral: 5.95 against a delta neutral price of 5.37. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does JOBY have?
454,539 contracts of open interest across 286 listed contracts on Oct 2, 2026, -4.7% 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.