Interactive13,160 contracts · 4,378 active cells · daily snapshot
SPY Options Landscape
The options book has two dimensions: price and time. This map preserves both. Read across for strike concentration, down for expiration concentration, and switch layers to see whether the same structure is coming from positioning, trading, volatility or the gamma model.
Open the SPY OI dashboard and methodology →Source: Massive option-chain snapshot + our SPY close
Current landscape2026-10-08
$773.93SPY
P/C open interest
2.231
Modelled gamma
$510.43B
Max pain
$765
Model flip
$583
01
Strike × expiration field
Modelled dealer gamma
Hover any cell for calls, puts and the exact strike/expiry combination. Click to pin it below.
Modelled short gammaModelled long gamma
02
Selected concentration
Pinned cell
$7742026-10-08 · 0 DTE
Call OI
4K
Put OI
7K
Modelled gamma
$282.98B
Weighted IV
4.8%
Read concentrations, not promises.
Large OI can influence hedging near expiration, but it is not guaranteed support or resistance. Gamma uses the same simplified dealer-side assumption as the SPY OI dashboard. Weighted IV excludes invalid or extreme vendor solver outputs.
Current landscape2026-10-08
$773.93SPY
P/C open interest
2.231
Modelled gamma
$510.43B
Max pain
$765
Model flip
$583