“All eyes are on Nvidia,” said Katie Stockton, founder of Fairlead Strategies, a research firm that provides technical analysis of markets, in a note Monday. The levels to watch for Nvidia’s stock are its 50-day moving average of around $167 and “minor resistance near $184,” she said.

Powell's speech at Jackson Hole will set the tone for policy through the rest of this year. BofA says the speech will drive big swings in these stocks.