Data through close

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

As of close · rank #988 by open interest · snapshot page

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MDY's nearest-expiration max pain is 675.00 for 2026-10-16, its GEX flip is 1,454.12, net GEX is -4,316,995, its put/call open-interest ratio is 6.11. These are whole-chain derived aggregates as of Oct 2, 2026 close.

Close
669.66
prev 663.38
Gamma max
1,010.00
+50.8% from close
Delta neutral
716.68
+7.0% from close
Gamma neutral
1,454.12
+117.1% from close
Open interest
50,307
+0.3% vs prev
Contracts listed
356
224 calls · 150 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
675.00
+0.8% from close
2026-10-16
GEX flip
1,454.12
+117.1% from close
Net GEX
-4,316,995
-8,581,301 per 100k OI
Call wall
720.00
+7.5% from close
Put wall
630.00
-5.9% from close
Put/call OI
6.11
43,236 puts / 7,071 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
3.2
within trailing 52-week range
Front / back ATM IV
+16.8% / +15.8%
1.0 pp front premium
Expected move
+3.3%
14 DTE · one standard deviation
ATM straddle / spot
+2.3%
front-window midpoint premium
25Δ risk reversal
0.4 pp
put IV minus call IV
IV butterfly
0.1 pp
front-window smile convexity
Volume / open interest
0.00
89 contracts traded
Normalized net delta
-0.092
option-holder convention
Modeled dealer delta
0.092
opposite-side scenario
Vanna / 100k OI
8,544
volatility-sensitive delta
Charm / 100k OI
243,089
time-decay-sensitive delta
IV surface range
38.6 pp
published contour maximum minus minimum

Download the complete dated analysis JSON .

MDY closed 50.8% below its gamma max of 1,010.00. It is 7.0% below the delta neutral price of 716.68. Total open interest is 50,307, +0.3% 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

Neighbours by open interest

← PAGS (#987) ESI (#989) →

Questions people ask about MDY

Where is MDY's gamma max today?

As of Oct 2, 2026, the gamma max for MDY is 1,010.00, +50.8% from the 669.66 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 MDY above or below its delta neutral price?

MDY closed below delta neutral: 669.66 against a delta neutral price of 716.68. The delta neutral price is where the summed delta of the whole chain is zero; the definition.

How much open interest does MDY have?

50,307 contracts of open interest across 356 listed contracts on Oct 2, 2026, +0.3% 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.