Data through close

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

As of close · rank #3737 by open interest · snapshot page

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ATRC's nearest-expiration max pain is 40.00 for 2026-10-16, its GEX flip is 22.11, net GEX is 39,081, its put/call open-interest ratio is 0.16. These are whole-chain derived aggregates as of Oct 2, 2026 close.

Close
55.14
prev 53.59
Gamma max
59.24
+7.4% from close
Delta neutral
41.58
-24.6% from close
Gamma neutral
22.11
-59.9% from close
Open interest
922
-0.2% vs prev
Contracts listed
33
29 calls · 17 puts

Whole-chain analytics

Derived after the close from the same dated options chain. Signed gamma exposure uses calls positive and puts negative; it is a model convention, not observed dealer inventory.

Nearest max pain
40.00
-27.5% from close
2026-10-16
GEX flip
22.11
-59.9% from close
Net GEX
39,081
4,238,693 per 100k OI
Call wall
60.00
+8.8% from close
Put wall
55.00
-0.3% from close
Put/call OI
0.16
127 puts / 795 calls

Advanced options analysis

Complete derived 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
0.0
within trailing 52-week range
Front / back ATM IV
+64.3% / +54.6%
9.6 pp front premium
Expected move
+12.6%
14 DTE · one standard deviation
ATM straddle / spot
–
front-window midpoint premium
25Δ risk reversal
– pp
put IV minus call IV
IV butterfly
– pp
front-window smile convexity
Volume / open interest
0.01
12 contracts traded
Normalized net delta
0.344
option-holder convention
Modeled dealer delta
-0.166
opposite-side scenario
Vanna / 100k OI
-868
volatility-sensitive delta
Charm / 100k OI
-126,247
time-decay-sensitive delta
IV surface range
82.0 pp
published contour maximum minus minimum

Download the complete dated analysis JSON .

ATRC closed 7.4% below its gamma max of 59.24. It is 24.6% above the delta neutral price of 41.58. Total open interest is 922, -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

Derived from the 2026-10-02 options chain. Select an analysis to explore its chart.

Gamma walls

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In today's screens

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Neighbours by open interest

← FNB (#3736) LEA (#3738) →

Questions people ask about ATRC

Where is ATRC's gamma max today?

As of Oct 2, 2026, the gamma max for ATRC is 59.24, +7.4% from the 55.14 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 ATRC above or below its delta neutral price?

ATRC closed above delta neutral: 55.14 against a delta neutral price of 41.58. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does ATRC have?

922 contracts of open interest across 33 listed contracts on Oct 2, 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.