U max pain, gamma exposure (GEX) & options open interest
As of close · rank #149 by open interest · 1,394 sessions of history since Dec 1, 2020
U's nearest-expiration max pain is 42.00 for 2026-10-09, its GEX flip is 28.66, net GEX is 54,992,211, its put/call open-interest ratio is 0.48. 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
U closed 4.6% below its gamma max of 45.60. It is 20.5% above the delta neutral price of 34.67. Total open interest is 682,886, -3.1% versus the previous session. Its options catalyst-intensity score is 50.5 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 | -15,337 contracts · -3.2% |
| Put OI change, 1 session | -6,291 contracts · -2.8% |
| Call minus put OI growth, 1 session | -0.5 pp |
| Call OI change, 5 sessions | +12,775 contracts · +2.8% |
| Put OI change, 5 sessions | +6,253 contracts · +2.9% |
| Call minus put OI growth, 5 sessions | -0.1 pp |
| Daily call OI change surprise | -0.41σ (252 prior changes) |
| Daily put OI change surprise | -0.31σ (252 prior changes) |
| Daily call-minus-put growth surprise | -0.13σ (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 27 completed Day +10 paths · latest Aug 17, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 27 | -1.0% | -4.6% to +1.0% | 33% | -3.1% to +0.1% | 0.0% |
| Day +2 | 27 | -1.6% | -4.1% to +0.9% | 41% | -2.9% to +0.2% | 0.0% |
| Day +3 | 27 | -1.8% | -4.5% to +1.5% | 37% | -4.2% to +1.1% | 0.0% |
| Day +4 | 27 | -1.4% | -5.9% to +1.6% | 41% | -5.8% to +0.5% | 0.0% |
| Day +5 | 27 | -3.0% | -7.8% to +1.3% | 37% | -5.5% to +0.9% | 0.0% |
| Day +6 | 27 | -1.8% | -8.6% to +2.4% | 44% | -6.9% to +2.1% | 0.0% |
| Day +7 | 27 | -0.1% | -8.1% to +5.6% | 48% | -6.9% to +3.9% | 0.0% |
| Day +8 | 27 | -0.7% | -9.6% to +7.9% | 48% | -6.9% to +5.0% | 0.0% |
| Day +9 | 27 | -2.5% | -8.3% to +5.8% | 44% | -6.8% to +3.9% | 0.0% |
| Day +10 | 27 | -2.2% | -11.7% to +5.9% | 44% | -10.4% to +5.1% | 0.0% |
Crosses above gamma max 24 completed Day +10 paths · latest Aug 6, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 24 | +1.6% | -3.2% to +3.8% | 58% | -2.4% to +2.9% | 0.0% |
| Day +2 | 24 | +2.8% | -3.8% to +5.3% | 58% | -2.1% to +5.2% | 0.0% |
| Day +3 | 24 | -0.9% | -2.8% to +4.1% | 46% | -2.5% to +3.0% | 0.0% |
| Day +4 | 24 | -0.5% | -7.2% to +2.6% | 46% | -3.5% to +2.3% | 0.0% |
| Day +5 | 24 | -1.2% | -6.4% to +0.7% | 33% | -5.1% to +0.3% | 0.0% |
| Day +6 | 24 | -3.8% | -9.3% to +2.0% | 29% | -8.7% to -0.8% | -0.8% |
| Day +7 | 24 | -4.1% | -8.0% to +3.4% | 29% | -7.2% to -0.2% | -0.2% |
| Day +8 | 24 | -2.5% | -6.8% to +5.1% | 42% | -5.8% to +4.0% | 0.0% |
| Day +9 | 24 | -5.3% | -8.5% to +8.6% | 46% | -8.1% to +6.8% | 0.0% |
| Day +10 | 24 | -3.5% | -11.0% to +8.1% | 46% | -8.6% 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 | 6% |
| Gamma max crosses | 10 |
| Delta neutral crosses | 12 |
| Prior-year sessions closer to gamma max | 17.9% of 252 |
| Prior-year sessions closer to delta neutral | 85.7% of 252 |
| Open interest percentile (1y) | 61th |
| Daily open interest change versus prior year | -0.39σ (-21,628 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +2.9% |
| Open interest change, 21 sessions | +46.1% |
| History available | Dec 1, 2020 → Oct 2, 2026 |
Recent crosses
- closed below gamma max at 45.45 vs 46.43 (-2.1%)
- closed above gamma max at 40.81 vs 39.84 (+2.4%)
- closed below gamma max at 29.17 vs 32.18 (-10.3%)
- closed above gamma max at 30.03 vs 29.28 (+2.5%)
- closed below gamma max at 30.78 vs 31.09 (-1.0%)
- closed above gamma max at 32.17 vs 30.78 (+4.3%)
- closed below gamma max at 30.47 vs 30.65 (-0.6%)
- closed above gamma max at 29.94 vs 29.82 (+0.4%)
- closed below gamma max at 25.82 vs 27.54 (-6.7%)
- closed above gamma max at 25.26 vs 24.46 (+3.2%)
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/U
Questions people ask about U
Where is U's gamma max today?
As of Oct 2, 2026, the gamma max for U is 45.60, +4.6% from the 43.61 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 U above or below its delta neutral price?
U closed above delta neutral: 43.61 against a delta neutral price of 34.67. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does U have?
682,886 contracts of open interest across 579 listed contracts on Oct 2, 2026, -3.1% 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.