BIIB max pain, gamma exposure (GEX) & options open interest
As of close · rank #1011 by open interest · snapshot page
BIIB's nearest-expiration max pain is 235.00 for 2026-10-30, its GEX flip is 210.17, net GEX is 1,359,703, its put/call open-interest ratio is 0.88. These are whole-chain derived aggregates as of Oct 23, 2026 close.
BIIB 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.
BIIB closed 4.0% below its gamma max of 260.73. It is 13.9% above the delta neutral price of 215.74. Total open interest is 46,035, -2.1% versus the previous session. What gamma max means · What delta neutral means
History
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Analysis visualizations
Daily ticker aggregates through 2026-10-23. 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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Questions people ask about BIIB
What is BIIB's max pain for the nearest expiration?
As of Oct 23, 2026 close, nearest-expiration max pain is 235.00 for the 2026-10-30 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 BIIB's gamma exposure and gamma flip show?
Signed net GEX is 1,359,703 as of Oct 23, 2026 close. The confirmed GEX flip is 210.17. 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 BIIB's gamma max today?
As of Oct 23, 2026, the gamma max for BIIB is 260.73, +4.0% from the 250.69 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 BIIB above or below its delta neutral price?
BIIB closed above delta neutral: 250.69 against a delta neutral price of 215.74. The delta neutral price is where the summed delta of the whole chain is zero; the definition.
How much open interest does BIIB have?
46,035 contracts of open interest across 468 listed contracts on Oct 23, 2026, -2.1% 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.