BKLN max pain, gamma exposure (GEX) & options open interest
As of close · rank #508 by open interest · 1,393 sessions of history since Dec 1, 2020
BKLN's nearest-expiration max pain is 21.00 for 2026-10-16, its GEX flip is 15.36, net GEX is 33,707,982, its put/call open-interest ratio is 1.30. 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 4.6 pp · 25Δ risk reversal 27.8 pp
BKLN closed 2.0% below its gamma max of 20.90. It is 0.2% above the delta neutral price of 20.43. Total open interest is 141,431, -0.0% versus the previous session. Its options catalyst-intensity score is 55.0 out of 100, led by front IV premium 4.6 pp, 25Δ risk reversal 27.8 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 | -2 contracts · -0.0% |
| Put OI change, 1 session | -13 contracts · -0.0% |
| Call minus put OI growth, 1 session | +0.0 pp |
| Call OI change, 5 sessions | +941 contracts · +1.6% |
| Put OI change, 5 sessions | +1,188 contracts · +1.5% |
| Call minus put OI growth, 5 sessions | +0.0 pp |
| Daily call OI change surprise | -0.09σ (252 prior changes) |
| Daily put OI change surprise | -0.01σ (252 prior changes) |
| Daily call-minus-put growth surprise | +0.03σ (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 above gamma max 1 completed Day +10 paths · latest Aug 28, 2023
| Horizon | n | Median | Middle 50% | Above zero | Nominal ≥90% median interval | Confidence floor |
|---|---|---|---|---|---|---|
| Day +1 | 1 | +0.2% | +0.2% to +0.2% | 100% | – | – |
| Day +2 | 1 | +0.2% | +0.2% to +0.2% | 100% | – | – |
| Day +3 | 1 | +0.3% | +0.3% to +0.3% | 100% | – | – |
| Day +4 | 1 | +0.5% | +0.5% to +0.5% | 100% | – | – |
| Day +5 | 1 | +0.6% | +0.6% to +0.6% | 100% | – | – |
| Day +6 | 1 | +0.4% | +0.4% to +0.4% | 100% | – | – |
| Day +7 | 1 | +0.6% | +0.6% to +0.6% | 100% | – | – |
| Day +8 | 1 | +0.7% | +0.7% to +0.7% | 100% | – | – |
| Day +9 | 1 | +0.8% | +0.8% to +0.8% | 100% | – | – |
| Day +10 | 1 | +0.9% | +0.9% to +0.9% | 100% | – | – |
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 | 25% |
| Gamma max crosses | 64 |
| Delta neutral crosses | 25 |
| Prior-year sessions closer to gamma max | 1.6% of 252 |
| Prior-year sessions closer to delta neutral | 0.8% of 252 |
| Open interest percentile (1y) | 50th |
| Daily open interest change versus prior year | -0.01σ (-15 contracts; 252 prior changes) |
| Open interest change, 5 sessions | +1.5% |
| Open interest change, 21 sessions | -9.8% |
| History available | Dec 1, 2020 → Oct 2, 2026 |
Recent crosses
- closed below gamma max at 20.46 vs 21.65 (-5.8%)
- closed above gamma max at 20.47 vs 13.00 (+36.5%)
- closed above delta neutral at 20.57 vs 20.55 (+0.1%)
- closed below delta neutral at 20.68 vs 68.14 (-229.5%)
- closed above delta neutral at 20.63 vs 0.03 (+99.9%)
- closed below delta neutral at 20.65 vs 84.58 (-309.6%)
- closed below gamma max at 20.65 vs 24.50 (-18.6%)
- closed above delta neutral at 20.61 vs 0.27 (+98.7%)
- closed above gamma max at 20.61 vs 15.00 (+27.2%)
- closed below gamma max at 20.59 vs 21.66 (-5.2%)
In today's screens
Neighbours by open interest
Cite or embed this snapshot
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/BKLN
Questions people ask about BKLN
Where is BKLN's gamma max today?
As of Oct 2, 2026, the gamma max for BKLN is 20.90, +2.0% from the 20.48 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 BKLN above or below its delta neutral price?
BKLN closed above delta neutral: 20.48 against a delta neutral price of 20.43. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does BKLN have?
141,431 contracts of open interest across 57 listed contracts on Oct 2, 2026, -0.0% 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.