While the US markets are down mildly on the day, the Nasdaq ETF Invesco QQQ Trust (NASDAQ:QQQ) is only a couple of points from a major options inflection point.
What Happened: The Nasdaq ETF QQQ is approaching the $400 strike, which is critical because it represents the zero gamma point for the ETF. The zero gamma point is where the estimated gamma of the market flips from positive to negative.
Positive gamma is when the market is overall net long options, while negative gamma is when the market is net short options.
Why This Matters: When the markets are in positive gamma (net long options), volatility tends to be lower and the option market makers tend to provide liquidity and stabilizing flows to the ETF.
However, when the market is in negative gamma (net short options), volatility tends to increase with market makers taking liquidity and destabilizing the movements.
Below is a graph of the S&P 500 ETF (NYSE:SPY) showing how the volatility changes between positive and negative gamma (image below, source: option metrics)
