ETF · Sectors & industries · as of Thu, Oct 29, 2026

IEO gamma exposure and option levels

Oil & gas exploration · close 147.61 (−0.45% on the day, −0.41% over 5 sessions)

Dealers were net long gamma (for 211 sessions): when the price moves, their hedging leans against it, which tends to calm it. The call wall — the strike with the most call open interest in reach — stands at 150, 1.6% above the close, unchanged for 3 sessions. The put wall stands at 122, 17.3% below the close, unchanged for 13 sessions — too far away to have much pull day to day. Further out, 110 below holds more open interest than any strike near the price — long-dated positions and hedges, too far away to act as a level. Max pain for the front expiry is 142 (3.8% below the close). Implied volatility over 30 days is 33.0%, an IV rank of 65 on a scale where 0 is the lowest day of its own year and 100 the highest; realised volatility over 20 days is 26.3%. The options price a move of about ±9.5% over the next 30 days.

LongDealer gamma · 211 sessions
$64KNet GEX, per 1% move
33.0%Implied vol, 30 days
65IV rank, 0 to 100
±9.5%Priced 30-day move
0.38Put / call open interest

IEO levels tonight

LevelPriceFrom the closeNote
Call wall150+1.6%3 sessions
Put wall122−17.3%13 sessions
Gamma flip110.14−25.4%above it dealers are long gamma
Max pain, front expiry142−3.8%

IEO and its option levels over the last year

The close, with the call wall and the put wall (the strikes the option book is heaviest at) and the gamma flip (the price where dealers’ net gamma changes sign). Each line is that day’s reading, not a level looked back on.

75100125150Jan 26Apr 26Jul 26Oct 26Call wall 150Close 147.61Put wall 122Gamma flip 97.36

Implied against realised volatility

What the options charge for the next 30 days, against how much IEO actually moved over the last 20. A gap between the two is the market’s price for uncertainty.

25%30%35%Jan 26Apr 26Jul 26Oct 26IV 30d 33.0%HV 20d 26.3%

How to read these figures

Gamma exposure (GEX)

How much dealers must buy or sell to stay hedged for each 1% move in the price. Long gamma means they trade against moves and dampen them; short gamma means they trade with moves and can amplify them. It is estimated from open interest and an assumption about which side dealers are on.

Call wall and put wall

The strikes where call and put open interest is heaviest within reach of the price. Prices often slow, or get pinned, near them into expiry; they are where a lot of hedging sits, not a guarantee.

Gamma flip

The price at which net dealer gamma changes sign. The same book acts as a brake above it and as an accelerator below it.

IV rank and the priced move

IV rank places today’s implied volatility between the lowest (0) and the highest (100) of the last year. The priced move is what the options charge for the next 30 days, as a percentage of the price.

Every figure is end-of-day and describes how the option market is positioned. It is not a forecast of where IEO goes, and not advice. See the terms.

The whole IEO history, all 121 series

This page shows tonight’s reading and one year. Open the Viewer for every session of IEO as 121 daily series — dealer gamma, vanna, charm, walls by expiry, IV, flow — on the chart.

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