ARKK max pain, gamma exposure (GEX) & options open interest
As of close · rank #183 by open interest · 1,393 sessions of history since Dec 1, 2020
ARKK's nearest-expiration max pain is 88.50 for 2026-10-09, its GEX flip is 91.07, net GEX is -4,359,425, its put/call open-interest ratio is 1.81. 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 -64.4 pp
ARKK closed 10.5% below its gamma max of 99.29. It is 3.5% above the delta neutral price of 86.64. Total open interest is 563,496, -7.5% versus the previous session. Its options catalyst-intensity score is 53.7 out of 100, led by 25Δ risk reversal -64.4 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 | -22,377 contracts · -10.0% |
| Put OI change, 1 session | -23,451 contracts · -6.1% |
| Call minus put OI growth, 1 session | -4.0 pp |
| Call OI change, 5 sessions | -9,993 contracts · -4.7% |
| Put OI change, 5 sessions | +12,429 contracts · +3.5% |
| Call minus put OI growth, 5 sessions | -8.3 pp |
| Daily call OI change surprise | -1.02σ (252 prior changes) |
| Daily put OI change surprise | -0.52σ (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 16 completed Day +10 paths · latest May 29, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 16 | -0.6% | -1.7% to +1.0% | 31% | -1.7% to +0.9% | 0.0% |
| Day +2 | 16 | +0.7% | -0.9% to +2.7% | 63% | -0.6% to +2.5% | 0.0% |
| Day +3 | 16 | -0.5% | -2.8% to +2.1% | 38% | -2.6% to +1.5% | 0.0% |
| Day +4 | 16 | +1.7% | -3.2% to +3.1% | 56% | -3.0% to +2.9% | 0.0% |
| Day +5 | 16 | +1.5% | -4.6% to +2.8% | 56% | -3.3% to +2.5% | 0.0% |
| Day +6 | 16 | +1.4% | -3.8% to +4.0% | 56% | -2.7% to +4.0% | 0.0% |
| Day +7 | 16 | +2.0% | -3.9% to +5.2% | 63% | -3.6% to +4.9% | 0.0% |
| Day +8 | 16 | +2.8% | +0.4% to +6.0% | 75% | +0.9% to +5.9% | +0.9% |
| Day +9 | 16 | +2.8% | -1.2% to +5.5% | 69% | -1.0% to +5.0% | 0.0% |
| Day +10 | 16 | +2.3% | -1.8% to +6.6% | 56% | -1.6% to +6.5% | 0.0% |
Crosses above gamma max 18 completed Day +10 paths · latest May 28, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 18 | +0.7% | -0.4% to +1.5% | 67% | -0.1% to +1.5% | 0.0% |
| Day +2 | 18 | +0.6% | -2.6% to +2.7% | 56% | -1.8% to +2.4% | 0.0% |
| Day +3 | 18 | +1.4% | -1.0% to +2.4% | 67% | -0.6% to +2.2% | 0.0% |
| Day +4 | 18 | -0.8% | -2.8% to +2.2% | 39% | -2.0% to +0.9% | 0.0% |
| Day +5 | 18 | -0.2% | -1.9% to +2.5% | 50% | -1.8% to +1.3% | 0.0% |
| Day +6 | 18 | +0.6% | -6.1% to +2.6% | 56% | -3.0% to +1.9% | 0.0% |
| Day +7 | 18 | +2.1% | -5.2% to +3.4% | 56% | -1.8% to +3.4% | 0.0% |
| Day +8 | 18 | +3.6% | -6.1% to +5.1% | 67% | -2.3% to +4.6% | 0.0% |
| Day +9 | 18 | +3.1% | -1.7% to +4.9% | 72% | +1.1% to +4.5% | +1.1% |
| Day +10 | 18 | +2.7% | -1.5% to +6.4% | 67% | -0.7% to +6.4% | 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 | 0% |
| Gamma max crosses | 2 |
| Delta neutral crosses | 44 |
| Prior-year sessions closer to gamma max | 44.4% of 252 |
| Prior-year sessions closer to delta neutral | 62.7% of 252 |
| Open interest percentile (1y) | 44th |
| Daily open interest change versus prior year | -0.72σ (-45,828 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +0.4% |
| Open interest change, 21 sessions | -14.8% |
| History available | Dec 1, 2020 → Oct 2, 2026 |
Recent crosses
- closed above delta neutral at 83.31 vs 80.68 (+3.2%)
- closed below delta neutral at 79.15 vs 79.87 (-0.9%)
- closed above delta neutral at 79.43 vs 78.04 (+1.7%)
- closed below delta neutral at 76.67 vs 78.86 (-2.9%)
- closed above delta neutral at 79.52 vs 79.47 (+0.1%)
- closed below delta neutral at 78.24 vs 79.12 (-1.1%)
- closed above delta neutral at 78.13 vs 77.50 (+0.8%)
- closed below delta neutral at 76.68 vs 77.19 (-0.7%)
- closed above delta neutral at 79.63 vs 76.53 (+3.9%)
- closed below delta neutral at 74.49 vs 77.36 (-3.9%)
In today's screens
Neighbours by open interest
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Canonical source: https://halfonadouble.com/stock/ARKK
Questions people ask about ARKK
Where is ARKK's gamma max today?
As of Oct 2, 2026, the gamma max for ARKK is 99.29, +10.5% from the 89.83 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 ARKK above or below its delta neutral price?
ARKK closed above delta neutral: 89.83 against a delta neutral price of 86.64. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does ARKK have?
563,496 contracts of open interest across 802 listed contracts on Oct 2, 2026, -7.5% 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.