When markets move faster than expected — or stall in tight ranges — it’s often because of something most traders can’t see: Gamma Exposure. In his latest video, “Gamma Trading Secrets: Transform the Way You Trade Options,” options expert Gavin McMaster breaks down how gamma exposure (GEX) shapes volatility, creates invisible support and resistance levels, and impacts how market makers hedge positions. More News from Barchart What Is Gamma Exposure (GEX)? Gamma exposure, often shortened to GEX, measures ...

The new JPMorgan Chase & Co. offices in New York. A run for the exits by investors in levered exchange-traded funds on Friday exacerbated the largest single-day stock market selloff since April, according to strategists at JPMorgan Chase & Co. The S&P 500 Index fell 2.7% in the rout, while the Nasdaq 100 plunged as much as 3.6%, after a social media post by US President Donald Trump threatened fresh tariffs on China. Most Read from Bloomberg Bram Kaplan and colleagues at JPMorgan pinned the blame for t ...