Data through close

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

As of close · rank #1361 by open interest · snapshot page

SNDX's nearest-expiration max pain is 19.00 for 2026-11-20, net GEX is 548,005, its put/call open-interest ratio is 0.18. These are whole-chain derived aggregates as of Oct 16, 2026 close.

SNDX 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
19.00
+47.3% from close
Expiry: 2026-11-20
GEX flip
–
Net GEX
548,005
2,313,331 per 100k OI
Call wall
24.00
+86.0% from close
Put wall
19.00
+47.3% from close
Put/call OI
0.18
3,579 puts / 20,110 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
12.90
prev 13.65
Gamma max
17.99
+39.5% from close
Delta neutral
12.00
-6.9% from close
Gamma neutral
12.90
0.0% from close
Open interest
23,689
-23.3% vs prev
Contracts listed
106
80 calls · 48 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
–
cross-sectional score / 100
Directional score
–
IV rank
100.0
within trailing 52-week range
Front IV premium
0.0 pp
front minus back volatility difference
25Δ risk reversal
-81.6 pp
put IV minus call IV
IV butterfly
– pp
front-window smile convexity
Volume / open interest
0.04
1,102 contracts traded
Normalized net delta
0.286
option-holder convention
Modeled dealer delta
-0.286
opposite-side scenario
Vanna / 100k OI
2,682
volatility-sensitive delta
Charm / 100k OI
-1,011,252
time-decay-sensitive delta
IV surface range
79.6 pp
aggregate volatility dispersion

Download the dated aggregate analysis JSON .

SNDX closed 39.5% below its gamma max of 17.99. It is 6.9% above the delta neutral price of 12.00. Total open interest is 23,689, -23.3% versus the previous session. What gamma max means · What delta neutral means

History

Full history since 2020: drag to pan, scroll to zoom, hover for values. Open full-screen chart

Analysis visualizations

Daily ticker aggregates through 2026-10-16. The max pain curve pools all listed expirations; individual contracts are outside the public dataset.

Aggregate IV history

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In today's screens

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Neighbours by open interest

Questions people ask about SNDX

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

As of Oct 16, 2026 close, nearest-expiration max pain is 19.00 for the 2026-11-20 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 SNDX's gamma exposure and gamma flip show?

Signed net GEX is 548,005 as of Oct 16, 2026 close. No confirmed GEX flip is available; this does not imply a zero exposure level. 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 SNDX's gamma max today?

As of Oct 16, 2026, the gamma max for SNDX is 17.99, +39.5% from the 12.90 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 SNDX above or below its delta neutral price?

SNDX closed above delta neutral: 12.90 against a delta neutral price of 12.00. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does SNDX have?

23,689 contracts of open interest across 106 listed contracts on Oct 16, 2026, -23.3% 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.