Data through close

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

As of close · rank #4523 by open interest · snapshot page

SIGI's nearest-expiration max pain is 80.00 for 2026-11-20, its GEX flip is 61.73, net GEX is 21,747, its put/call open-interest ratio is 0.11. These are whole-chain derived aggregates as of Oct 16, 2026 close.

SIGI 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
80.00
-10.3% from close
Expiry: 2026-11-20
GEX flip
61.73
-30.8% from close
Net GEX
21,747
15,314,530 per 100k OI
Call wall
100.00
+12.2% from close
Put wall
85.00
-4.7% from close
Put/call OI
0.11
14 puts / 128 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
89.16
prev 87.30
Gamma max
93.88
+5.3% from close
Delta neutral
75.82
-15.0% from close
Gamma neutral
61.73
-30.8% from close
Open interest
142
-13.4% vs prev
Contracts listed
21
17 calls · 7 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
38.2
within trailing 52-week range
Front IV premium
-0.0 pp
front minus back volatility difference
25Δ risk reversal
– pp
put IV minus call IV
IV butterfly
– pp
front-window smile convexity
Volume / open interest
0.00
0 contracts traded
Normalized net delta
0.253
option-holder convention
Modeled dealer delta
-0.188
opposite-side scenario
Vanna / 100k OI
0
volatility-sensitive delta
Charm / 100k OI
0
time-decay-sensitive delta
IV surface range
4.9 pp
aggregate volatility dispersion

Download the dated aggregate analysis JSON .

SIGI closed 5.3% below its gamma max of 93.88. It is 15.0% above the delta neutral price of 75.82. Total open interest is 142, -13.4% 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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Neighbours by open interest

Questions people ask about SIGI

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

As of Oct 16, 2026 close, nearest-expiration max pain is 80.00 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 SIGI's gamma exposure and gamma flip show?

Signed net GEX is 21,747 as of Oct 16, 2026 close. The confirmed GEX flip is 61.73. 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 SIGI's gamma max today?

As of Oct 16, 2026, the gamma max for SIGI is 93.88, +5.3% from the 89.16 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 SIGI above or below its delta neutral price?

SIGI closed above delta neutral: 89.16 against a delta neutral price of 75.82. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does SIGI have?

142 contracts of open interest across 21 listed contracts on Oct 16, 2026, -13.4% 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.