Data through close

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

As of close

ACLS's nearest-expiration max pain is 100.00 for the Fri, Nov 20, 2026 expiration, 4.2% below the 104.42 close; all-expiration max pain is 105.00; the GEX flip is 101.20; net GEX is 49.43K (modeled dollar-delta change per $1 move); the put/call open-interest ratio is 0.62. These are whole-chain derived aggregates as of Nov 13, 2026 close.

ACLS 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
100.00
-4.2% from close
Expiry: Fri, Nov 20, 2026
All-expiration max pain: 105.00
GEX flip (gamma neutral)
101.20
-3.1% from close
Net GEX
49,431
697,685 per 100k OI
Call wall
120.00
+14.9% from close
Put wall
110.00
+5.3% from close
Put/call OI
0.62
2,719 puts / 4,366 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
104.42
prev 108.06
Gamma max
132.47
+26.9% from close
Delta neutral
104.41
-0.0% from close
Gamma neutral (GEX flip)
101.20
-3.1% from close
Open interest
7,085
+0.7% vs prev
Contracts listed
188
127 calls · 84 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
21.6
within trailing 52-week range
Front IV premium
20.9 pp
front minus back volatility difference
25Δ risk reversal
-2.3 pp
put IV minus call IV
IV butterfly
-9.6 pp
front-window smile convexity
Volume / open interest
0.01
97 contracts traded
Normalized net delta
0.034
option-holder convention
Modeled dealer delta
-0.034
opposite-side scenario
Vanna / 100k OI
2,442
volatility-sensitive delta
Charm / 100k OI
158,885
time-decay-sensitive delta
IV surface range
108.3 pp
aggregate volatility dispersion

Download the dated aggregate analysis JSON .

ACLS closed 26.9% below its gamma max of 132.47. It is right at the delta neutral price of 104.41. Total open interest is 7,085, +0.7% 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/ACLS

Questions people ask about ACLS

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

As of Nov 13, 2026 close, nearest-expiration max pain is 100.00 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 ACLS's gamma exposure and gamma flip show?

Signed net GEX is 49,431 as of Nov 13, 2026 close. The confirmed GEX flip is 101.20. 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 ACLS's gamma max today?

As of Nov 13, 2026, the gamma max for ACLS is 132.47, +26.9% from the 104.42 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 ACLS above or below its delta neutral price?

ACLS closed above delta neutral: 104.42 against a delta neutral price of 104.41. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does ACLS have?

7,085 contracts of open interest across 188 listed contracts on Nov 13, 2026, +0.7% 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.