Data through close

BITO max pain, gamma exposure (GEX) & options open interest

As of close · rank #356 by open interest · 1,175 sessions of history since Oct 21, 2021

BITO's nearest-expiration max pain is 10.50 for 2026-10-16, its GEX flip is 2.64, net GEX is 10,529,691, its put/call open-interest ratio is 0.28. These are whole-chain derived aggregates as of Oct 9, 2026 close.

BITO 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.

Nearest-expiration max pain
10.50
-4.5% from close
Expiry: 2026-10-16
GEX flip
2.64
-76.0% from close
Net GEX
10,529,691
4,153,724 per 100k OI
Call wall
11.00
0.0% from close
Put wall
11.00
0.0% from close
Put/call OI
0.28
55,068 puts / 198,432 calls

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.

Close
11.00
prev 10.93
Gamma max
11.47
+4.3% from close
Delta neutral
10.36
-5.8% from close
Gamma neutral
2.64
-76.0% from close
Open interest
253,500
-4.0% vs prev
Contracts listed
328
236 calls · 174 puts

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.

Catalyst intensity
51.1
cross-sectional score / 100
Directional score
38.3
relatively bullish positioning
IV rank
34.2
within trailing 52-week range
Front IV premium
10.1 pp
front minus back volatility difference
25Δ risk reversal
-95.6 pp
put IV minus call IV
IV butterfly
-0.5 pp
front-window smile convexity
Volume / open interest
0.02
5,136 contracts traded
Normalized net delta
0.104
option-holder convention
Modeled dealer delta
-0.097
opposite-side scenario
Vanna / 100k OI
3,907
volatility-sensitive delta
Charm / 100k OI
-68,457
time-decay-sensitive delta
IV surface range
171.7 pp
aggregate volatility dispersion

Strongest relative signals: front IV premium 10.1 pp · 25Δ risk reversal -95.6 pp

Download the dated aggregate analysis JSON .

BITO closed 4.3% below its gamma max of 11.47. It is 5.8% above the delta neutral price of 10.36. Total open interest is 253,500, -4.0% versus the previous session. Its options catalyst-intensity score is 51.1 out of 100, led by front IV premium 10.1 pp, 25Δ risk reversal -95.6 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.

BITO call and put open interest changes
Measure Value
Call OI change, 1 session -10,114 contracts · -4.8%
Put OI change, 1 session -348 contracts · -0.6%
Call minus put OI growth, 1 session -4.2 pp
Call OI change, 5 sessions +180 contracts · +0.1%
Put OI change, 5 sessions +6,964 contracts · +14.5%
Call minus put OI growth, 5 sessions -14.4 pp
Daily call OI change surprise -0.52σ (252 prior changes)
Daily put OI change surprise +0.01σ (252 prior changes)
Daily call-minus-put growth surprise -0.75σ (252 prior changes)

History

2025-10 2026-10
close delta neutral gamma max
Full history since 2020: drag to pan, scroll to zoom, hover for values. Open full-screen chart

Analysis visualizations

Daily ticker aggregates through 2026-10-09. Contract-level charts are outside the public dataset.

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 23 completed Day +10 paths · latest Sep 25, 2026
BITO returns after crossing below gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -14.0% -7.0% 0% +7.0% +14.0% Cross on Jun 23, 2023 Cross on Oct 3, 2023 Cross on Oct 5, 2023 Cross on Dec 6, 2023 Cross on Dec 28, 2023 Cross on Feb 16, 2024 Cross on Feb 29, 2024 Cross on Mar 5, 2024 Cross on Mar 14, 2024 Cross on Sep 20, 2024 Cross on Nov 12, 2024 Cross on Nov 22, 2024 Cross on Apr 24, 2025 Cross on May 9, 2025 Cross on May 23, 2025 Cross on Apr 23, 2026 Cross on May 7, 2026 Cross on Jul 8, 2026 Cross on Jul 10, 2026 Cross on Jul 22, 2026 Cross on Aug 25, 2026 Cross on Sep 23, 2026 Cross on Sep 25, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
BITO historical gamma-max cross outcomes after closing below
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 23 -0.3% -1.3% to +1.4% 43% -0.9% to +0.2% 0.0%
Day +2 23 +0.5% -1.5% to +1.6% 57% -1.1% to +1.1% 0.0%
Day +3 23 -0.4% -2.3% to +1.2% 30% -2.0% to 0.0% 0.0%
Day +4 23 -0.3% -2.4% to +1.7% 43% -1.9% to +0.6% 0.0%
Day +5 23 +0.1% -2.5% to +2.2% 57% -2.2% to +0.8% 0.0%
Day +6 23 -0.2% -2.6% to +2.7% 48% -2.3% to +1.7% 0.0%
Day +7 23 +2.2% -4.0% to +3.8% 57% -2.5% to +3.6% 0.0%
Day +8 23 +0.8% -3.8% to +4.8% 52% -1.9% to +4.5% 0.0%
Day +9 23 +0.9% -2.9% to +6.0% 52% -2.1% to +4.6% 0.0%
Day +10 23 +0.9% -2.1% to +4.8% 57% -1.8% to +3.4% 0.0%
Crosses above gamma max 21 completed Day +10 paths · latest Sep 24, 2026
BITO returns after crossing above gamma max Historical close-to-close return paths from Day 0 through Day 10, with the median, middle fifty percent, and a nominal confidence interval for the median. -16.0% -8.0% 0% +8.0% +16.0% Cross on Jun 20, 2023 Cross on Oct 2, 2023 Cross on Oct 4, 2023 Cross on Dec 4, 2023 Cross on Feb 8, 2024 Cross on Feb 26, 2024 Cross on Mar 4, 2024 Cross on Mar 8, 2024 Cross on Sep 19, 2024 Cross on Nov 21, 2024 Cross on Apr 22, 2025 Cross on May 8, 2025 Cross on May 22, 2025 Cross on Apr 22, 2026 Cross on May 1, 2026 Cross on Jul 2, 2026 Cross on Jul 9, 2026 Cross on Jul 21, 2026 Cross on Aug 19, 2026 Cross on Sep 21, 2026 Cross on Sep 24, 2026 Day 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10
prior crosses middle 50% of outcomes nominal ≥90% median interval median
BITO historical gamma-max cross outcomes after closing above
Horizon n Median Middle 50% Above zero Nominal ≥90% median interval Confidence floor
Day +1 21 +1.2% -0.7% to +4.1% 57% -0.6% to +3.7% 0.0%
Day +2 21 +1.4% -1.5% to +4.0% 57% -1.3% to +3.8% 0.0%
Day +3 21 +1.2% -1.9% to +4.2% 52% -1.1% to +3.7% 0.0%
Day +4 21 +1.9% -1.2% to +3.5% 62% -1.1% to +2.8% 0.0%
Day +5 21 +1.7% -2.7% to +4.0% 52% -1.4% to +4.0% 0.0%
Day +6 21 +0.1% -3.5% to +4.3% 52% -3.1% to +2.7% 0.0%
Day +7 21 +2.5% -3.6% to +4.9% 57% -3.3% to +4.0% 0.0%
Day +8 21 +2.1% -3.3% to +5.5% 67% -2.5% to +5.1% 0.0%
Day +9 21 +1.8% -3.6% to +4.6% 57% -2.9% to +4.2% 0.0%
Day +10 21 +0.7% -1.6% to +3.6% 57% -1.5% to +3.0% 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

BITO trailing historical statistics
Sessions closed above gamma max 7%
Gamma max crosses 16
Delta neutral crosses 20
Prior-year sessions closer to gamma max 23.8% of 252
Prior-year sessions closer to delta neutral 43.7% of 252
Open interest percentile (1y) 30th
Daily open interest change versus prior year -0.40σ (-10,462 contracts; 252 prior changes)
Open interest change, 5 sessions +2.9%
Open interest change, 21 sessions -6.1%
History available Oct 21, 2021 → Oct 9, 2026

Recent crosses

  1. closed below gamma max at 11.27 vs 12.20 (-8.2%)
  2. closed above gamma max at 11.34 vs 11.23 (+1.0%)
  3. closed below gamma max at 11.35 vs 12.00 (-5.7%)
  4. closed above gamma max at 11.62 vs 11.34 (+2.4%)
  5. closed below gamma max at 10.66 vs 11.13 (-4.4%)
  6. closed above gamma max at 9.25 vs 9.04 (+2.3%)
  7. closed below gamma max at 8.93 vs 9.01 (-0.9%)
  8. closed above gamma max at 9.01 vs 9.01 (+0.0%)
  9. closed below gamma max at 8.67 vs 8.91 (-2.7%)
  10. closed above gamma max at 8.57 vs 8.49 (+0.9%)

In today's screens

Neighbours by open interest

Cite or embed this snapshot

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Canonical source: https://halfonadouble.com/stock/BITO

Questions people ask about BITO

What is BITO's max pain for the nearest expiration?

As of Oct 9, 2026 close, nearest-expiration max pain is 10.50 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 BITO's gamma exposure and gamma flip show?

Signed net GEX is 10,529,691 as of Oct 9, 2026 close. The confirmed GEX flip is 2.64. 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 BITO's gamma max today?

As of Oct 9, 2026, the gamma max for BITO is 11.47, +4.3% from the 11.00 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 BITO above or below its delta neutral price?

BITO closed above delta neutral: 11.00 against a delta neutral price of 10.36. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does BITO have?

253,500 contracts of open interest across 328 listed contracts on Oct 9, 2026, -4.0% 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.