GammaTape

The options map for index traders.

Gamma walls, GEX by strike and full session replay — live, for SPX, NDX, QQQ and SPY.

NDX

NDXP options · Vol GEX · 0DTE · NY2026-06-10
Demo — real NDX session · 2026-06-10

Real product, real rendering — drag to pan, scroll to zoom.

4 tickers0DTE optionsSub-second updatesReplay any session

Everything you need to read positioning.

Nothing you don't.

Levels on the chart

Call wall, put wall and gamma flip drawn directly on the price chart, in points.

GEX by strike

The full gamma exposure profile, by open interest or volume, updated every snapshot.

Full session replay

Replay any past session at 1x, 2x, 4x or 8x and watch the walls move with price.

Four instruments

SPX, NDX, QQQ and SPY — each computed independently from its own option chain.

Simple, honest pricing

Cancel anytime. No trial credit card required.

Free

$0per month
  • 1 ticker (SPX only)
  • Call & put wall only
  • 1-day history
Start free

Pro

Most popular
$49per month
  • All 4 tickers — SPX, NDX, QQQ, SPY
  • All levels: walls, zero gamma, max pain
  • 60-day history & replay
  • Price-cross alerts
Start free

Max

$129per month
  • Everything in Pro
  • API access
  • Multi-chart layouts (up to 4)
  • Priority support
Go Max