ETF · US equity · as of Thu, Oct 29, 2026

IVV gamma exposure and option levels

S&P 500 · close 772.9 (−0.36% on the day, +0.72% over 5 sessions)

Dealers were net long gamma (for 5 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 800, 3.5% above the close, unchanged for 21 sessions. The put wall stands at 750, 3.0% below the close, unchanged for 8 sessions. Max pain for the front expiry is 766 (0.9% below the close). Implied volatility over 30 days is 13.3%, an IV rank of 14 on a scale where 0 is the lowest day of its own year and 100 the highest; realised volatility over 20 days is 10.2%. The options price a move of about ±3.8% over the next 30 days.

LongDealer gamma · 5 sessions
$15.2MNet GEX, per 1% move
13.3%Implied vol, 30 days
14IV rank, 0 to 100
±3.8%Priced 30-day move
0.67Put / call open interest

IVV levels tonight

LevelPriceFrom the closeNote
Call wall800+3.5%21 sessions
Put wall750−3.0%8 sessions
Gamma flip726.07−6.1%above it dealers are long gamma
Max pain, front expiry766−0.9%

IVV 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.

600700800Jan 26Apr 26Jul 26Oct 26Call wall 800Close 772.9Put wall 750Gamma flip 723.08

Implied against realised volatility

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

10%15%20%25%Jan 26Apr 26Jul 26Oct 26IV 30d 13.3%HV 20d 10.2%

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 IVV goes, and not advice. See the terms.

The whole IVV history, all 121 series

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

Other US equity ETFs

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