Data through close

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

As of close

WST's nearest-expiration max pain is 380.00 for the Fri, Nov 20, 2026 expiration, 8.8% below the 416.75 close; all-expiration max pain is 350.00; the GEX flip is 351.68; net GEX is 443.65K (modeled dollar-delta change per $1 move); the put/call open-interest ratio is 0.80. These are whole-chain derived aggregates as of Nov 13, 2026 close.

WST 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
380.00
-8.8% from close
Expiry: Fri, Nov 20, 2026
All-expiration max pain: 350.00
GEX flip (gamma neutral)
351.68
-15.6% from close
Net GEX
443,647
6,396,293 per 100k OI
Call wall
420.00
+0.8% from close
Put wall
400.00
-4.0% from close
Put/call OI
0.80
3,078 puts / 3,858 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
416.75
prev 411.30
Gamma max
427.20
+2.5% from close
Delta neutral
370.35
-11.1% from close
Gamma neutral (GEX flip)
351.68
-15.6% from close
Open interest
6,936
-0.2% vs prev
Contracts listed
227
146 calls · 122 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
27.8
within trailing 52-week range
Front IV premium
6.0 pp
front minus back volatility difference
25Δ risk reversal
68.5 pp
put IV minus call IV
IV butterfly
0.0 pp
front-window smile convexity
Volume / open interest
0.01
96 contracts traded
Normalized net delta
0.305
option-holder convention
Modeled dealer delta
-0.301
opposite-side scenario
Vanna / 100k OI
1,946
volatility-sensitive delta
Charm / 100k OI
-8,038,307
time-decay-sensitive delta
IV surface range
90.6 pp
aggregate volatility dispersion

Download the dated aggregate analysis JSON .

WST closed 2.5% below its gamma max of 427.20. It is 11.1% above the delta neutral price of 370.35. Total open interest is 6,936, -0.2% 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 2026-11-13. This analysis view omits individual contract fields.

To see all-expiration max pain over time, open the History chart and select “All-expiration max pain” under More series.

Aggregate IV history

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In today's screens

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Neighbours by open interest

Cite or embed this snapshot

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

Questions people ask about WST

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

As of Nov 13, 2026 close, nearest-expiration max pain is 380.00 for the Fri, Nov 20, 2026 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 WST's gamma exposure and gamma flip show?

Signed net GEX is 443,647 as of Nov 13, 2026 close. The confirmed GEX flip is 351.68. 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 WST's gamma max today?

As of Nov 13, 2026, the gamma max for WST is 427.20, +2.5% from the 416.75 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 WST above or below its delta neutral price?

WST closed above delta neutral: 416.75 against a delta neutral price of 370.35. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does WST have?

6,936 contracts of open interest across 227 listed contracts on Nov 13, 2026, -0.2% 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.