Data through close

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

As of close · rank #1618 by open interest · snapshot page

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SIMO's nearest-expiration max pain is 250.00 for 2026-10-16, its GEX flip is 205.84, net GEX is 1,201,217, its put/call open-interest ratio is 0.43. These are whole-chain derived aggregates as of Oct 2, 2026 close.

Close
280.50
prev 275.24
Gamma max
285.32
+1.7% from close
Delta neutral
209.67
-25.3% from close
Gamma neutral
205.84
-26.6% from close
Open interest
18,794
+3.8% vs prev
Contracts listed
297
202 calls · 165 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
250.00
-10.9% from close
2026-10-16
GEX flip
205.84
-26.6% from close
Net GEX
1,201,217
6,391,493 per 100k OI
Call wall
290.00
+3.4% from close
Put wall
230.00
-18.0% from close
Put/call OI
0.43
5,613 puts / 13,181 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
11.2
within trailing 52-week range
Front / back ATM IV
+72.8% / +87.2%
-14.4 pp front premium
Expected move
+14.3%
14 DTE · one standard deviation
ATM straddle / spot
+11.3%
front-window midpoint premium
25Δ risk reversal
5.4 pp
put IV minus call IV
IV butterfly
-11.7 pp
front-window smile convexity
Volume / open interest
0.05
1,008 contracts traded
Normalized net delta
0.331
option-holder convention
Modeled dealer delta
-0.331
opposite-side scenario
Vanna / 100k OI
-559
volatility-sensitive delta
Charm / 100k OI
-13,084,543
time-decay-sensitive delta
IV surface range
42.9 pp
published contour maximum minus minimum

Download the complete dated analysis JSON .

SIMO closed 1.7% below its gamma max of 285.32. It is 25.3% above the delta neutral price of 209.67. Total open interest is 18,794, +3.8% 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

← OLLI (#1617) AZO (#1619) →

Questions people ask about SIMO

Where is SIMO's gamma max today?

As of Oct 2, 2026, the gamma max for SIMO is 285.32, +1.7% from the 280.50 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 SIMO above or below its delta neutral price?

SIMO closed above delta neutral: 280.50 against a delta neutral price of 209.67. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does SIMO have?

18,794 contracts of open interest across 297 listed contracts on Oct 2, 2026, +3.8% 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.