# QQQ — Overview · GammaGrid demo

**Gamma weather: Storm.** This chain has no gamma flip inside its strike range, so only the sign of gamma is known — negative, hedging amplifies moves. *(next 26 days · 9 expiries)*

| Level | Value |
|---|---|
| Price | 714.88 |
| Call wall | 730.00 |
| Put wall | 700.00 |
| Gamma flip | — |
| Net GEX | -233.7 M |

## Put/call ratio

At the latest collection: by volume **1.87**, by open interest **1.37**. The page draws the ratio over 365 days and the implied-volatility surface.

## About these numbers

Computed by GammaGrid from the QQQ options chain — dealer gamma exposure, max pain and the walls are GammaGrid's own arithmetic over open interest; the source data is delayed. Collected 2026-09-13T04:12:11.996370 UTC; this page follows the collection, roughly every fifteen minutes while the market is open.

Other views of QQQ: [Max Pain / GEX](https://app.gammagrid.io/demo/t/QQQ/max-pain.md) · [GEX Heatmap](https://app.gammagrid.io/demo/t/QQQ/heatmap.md) · [Volatility (IV)](https://app.gammagrid.io/demo/t/QQQ/volatility.md).

Canonical page: <https://app.gammagrid.io/demo/t/QQQ> · The demo shows the free list only; a GammaGrid account watches any US-listed ticker with options, replays earlier collections and opens every contract: <https://app.gammagrid.io/>