Data through close

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

As of close · rank #1920 by open interest · snapshot page

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ONTO's nearest-expiration max pain is 280.00 for 2026-10-16, its GEX flip is 249.97, net GEX is 811,581, its put/call open-interest ratio is 0.54. These are whole-chain derived aggregates as of Oct 2, 2026 close.

Close
327.77
prev 314.88
Gamma max
335.05
+2.2% from close
Delta neutral
262.30
-20.0% from close
Gamma neutral
249.97
-23.7% from close
Open interest
12,432
+2.2% vs prev
Contracts listed
281
210 calls · 160 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
280.00
-14.6% from close
2026-10-16
GEX flip
249.97
-23.7% from close
Net GEX
811,581
6,528,165 per 100k OI
Call wall
330.00
+0.7% from close
Put wall
280.00
-14.6% from close
Put/call OI
0.54
4,357 puts / 8,075 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
0.3
within trailing 52-week range
Front / back ATM IV
+63.8% / +71.8%
-8.0 pp front premium
Expected move
+12.5%
14 DTE · one standard deviation
ATM straddle / spot
+9.7%
front-window midpoint premium
25Δ risk reversal
-0.1 pp
put IV minus call IV
IV butterfly
-1.8 pp
front-window smile convexity
Volume / open interest
0.05
663 contracts traded
Normalized net delta
0.262
option-holder convention
Modeled dealer delta
-0.261
opposite-side scenario
Vanna / 100k OI
2,413
volatility-sensitive delta
Charm / 100k OI
-8,549,638
time-decay-sensitive delta
IV surface range
52.2 pp
published contour maximum minus minimum

Download the complete dated analysis JSON .

ONTO closed 2.2% below its gamma max of 335.05. It is 20.0% above the delta neutral price of 262.30. Total open interest is 12,432, +2.2% 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

← UGI (#1919) CRTO (#1921) →

Questions people ask about ONTO

Where is ONTO's gamma max today?

As of Oct 2, 2026, the gamma max for ONTO is 335.05, +2.2% from the 327.77 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 ONTO above or below its delta neutral price?

ONTO closed above delta neutral: 327.77 against a delta neutral price of 262.30. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does ONTO have?

12,432 contracts of open interest across 281 listed contracts on Oct 2, 2026, +2.2% 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.