BRUN max pain, gamma exposure (GEX) & options open interest
As of close · rank #489 by open interest · 84 sessions of history since Jun 17, 2026
BRUN's nearest-expiration max pain is 13.00 for 2026-10-16, its GEX flip is 7.56, net GEX is 57,379, its put/call open-interest ratio is 0.23. These are whole-chain derived aggregates as of Oct 15, 2026 close.
BRUN max pain and GEX snapshot
End-of-day snapshot for . Nearest-expiration max pain uses the expiry shown on its card; GEX uses the whole chain. Missing values are unavailable, not zero.
Prices are in US dollars per share. Net GEX is modeled dollar-delta change per $1 underlying move. Max pain minimizes aggregate intrinsic payout for that expiration; it is not a closing-price forecast. Signed GEX uses calls positive and puts negative, a model convention rather than observed dealer inventory. The flip is a confirmed zero crossing; walls locate side-specific concentrations, not guaranteed support or resistance.
Learn how to read the max pain payout example, GEX chart, gamma flip and walls, and open interest versus trading volume.
Advanced options analysis
Public aggregate 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 -44.3 pp · volume/OI 0.11 · IV rank 100
BRUN closed 76.8% below its gamma max of 17.82. It is 11.1% below the delta neutral price of 11.20. Total open interest is 170,991, +0.8% versus the previous session. Its options catalyst-intensity score is 52.9 out of 100, led by 25Δ risk reversal -44.3 pp, volume/OI 0.11, 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 | +1,543 contracts · +1.1% |
| Put OI change, 1 session | -192 contracts · -0.6% |
| Call minus put OI growth, 1 session | +1.7 pp |
| Call OI change, 5 sessions | +22,154 contracts · +19.0% |
| Put OI change, 5 sessions | +3,255 contracts · +11.1% |
| Call minus put OI growth, 5 sessions | +7.9 pp |
| Daily call OI change surprise | — (82 prior changes) |
| Daily put OI change surprise | — (82 prior changes) |
| Daily call-minus-put growth surprise | — (82 prior changes) |
History
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Analysis visualizations
Daily ticker aggregates through 2026-10-15. The max pain curve pools all listed expirations; individual contracts are outside the public dataset.
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Aggregate IV history
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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 2 completed Day +10 paths · latest Aug 19, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 2 | +4.0% | +3.0% to +4.9% | 100% | – | – |
| Day +2 | 2 | +2.2% | +2.0% to +2.4% | 100% | – | – |
| Day +3 | 2 | +1.5% | -1.9% to +4.9% | 50% | – | – |
| Day +4 | 2 | +13.6% | +6.0% to +21.3% | 50% | – | – |
| Day +5 | 2 | +13.4% | +4.6% to +22.3% | 50% | – | – |
| Day +6 | 2 | +20.9% | +14.7% to +27.1% | 100% | – | – |
| Day +7 | 2 | +10.7% | +0.2% to +21.2% | 50% | – | – |
| Day +8 | 2 | +4.4% | -2.0% to +10.7% | 50% | – | – |
| Day +9 | 2 | -0.5% | -6.0% to +5.1% | 50% | – | – |
| Day +10 | 2 | -0.1% | -6.5% to +6.4% | 50% | – | – |
Crosses above gamma max 2 completed Day +10 paths · latest Aug 12, 2026
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 2 | -1.8% | -3.6% to -0.0% | 50% | – | – |
| Day +2 | 2 | -0.7% | -2.8% to +1.4% | 50% | – | – |
| Day +3 | 2 | -2.1% | -4.2% to -0.0% | 50% | – | – |
| Day +4 | 2 | -7.6% | -8.4% to -6.9% | 0% | – | – |
| Day +5 | 2 | -10.5% | -12.4% to -8.6% | 0% | – | – |
| Day +6 | 2 | -9.9% | -11.2% to -8.7% | 0% | – | – |
| Day +7 | 2 | -3.1% | -7.5% to +1.4% | 50% | – | – |
| Day +8 | 2 | -13.7% | -16.3% to -11.2% | 0% | – | – |
| Day +9 | 2 | -14.5% | -15.1% to -13.9% | 0% | – | – |
| Day +10 | 2 | -14.9% | -16.4% to -13.4% | 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 84 sessions
| Sessions closed above gamma max | 12% |
| Gamma max crosses | 6 |
| Delta neutral crosses | 9 |
| Prior-year sessions closer to gamma max | 96.4% of 83 |
| Prior-year sessions closer to delta neutral | 62.7% of 83 |
| Open interest percentile (1y) | 100th |
| Daily open interest change versus prior year | – (1,351 contracts; 82 prior changes) |
| Open interest change, 5 sessions | +17.5% |
| Open interest change, 21 sessions | +40.1% |
| History available | Jun 17, 2026 → Oct 15, 2026 |
Recent crosses
- closed below delta neutral at 11.79 vs 12.22 (-3.6%)
- closed above delta neutral at 13.18 vs 13.13 (+0.4%)
- closed below delta neutral at 12.10 vs 12.17 (-0.6%)
- closed above delta neutral at 16.68 vs 15.79 (+5.3%)
- closed below delta neutral at 14.57 vs 15.22 (-4.5%)
- closed below gamma max at 19.01 vs 20.50 (-7.8%)
- closed above gamma max at 22.17 vs 19.95 (+10.0%)
- closed below gamma max at 17.19 vs 17.75 (-3.3%)
- closed above gamma max at 20.04 vs 18.92 (+5.6%)
- closed above delta neutral at 19.85 vs 18.61 (+6.2%)
In today's screens
Neighbours by open interest
Cite or embed this snapshot
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Canonical source: https://halfonadouble.com/stock/BRUN
Questions people ask about BRUN
What is BRUN's max pain for the nearest expiration?
As of Oct 15, 2026 close, nearest-expiration max pain is 13.00 for the 2026-10-16 expiration. It is a payout-minimizing strike for one expiration. An all-expiration pooled value is a different comparison, and neither establishes where the underlying will close. Max pain definition and worked payout example.
Our 2025 max-pain study compares historical Thursday levels with Friday underlying closes and an unchanged-price baseline. Its scope and results are separate from this current ticker snapshot.
What do BRUN's gamma exposure and gamma flip show?
Signed net GEX is 57,379 as of Oct 15, 2026 close. The confirmed GEX flip is 7.56. These aggregate model outputs use calls positive and puts negative. Their sign does not identify dealers' actual positions or predict the next move. How to interpret GEX, gamma flip and walls.
Where is BRUN's gamma max today?
As of Oct 15, 2026, the gamma max for BRUN is 17.82, +76.8% from the 10.08 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 BRUN above or below its delta neutral price?
BRUN closed below delta neutral: 10.08 against a delta neutral price of 11.20. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does BRUN have?
170,991 contracts of open interest across 229 listed contracts on Oct 15, 2026, +0.8% 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.