Investors have all eyes fixed on the Federal Reserve’s annual economic symposium in Jackson Hole, Wyo., as the Fed charts the future direction of the monetary policy in what could be a defining moment for the market’s summer story.

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.

By Davide Barbuscia NEW YORK (Reuters) -Investors are bracing for volatility as Federal Reserve Chair Jerome Powell walks a fine line between curbing inflation and supporting the labor market, with thin August trading poised to magnify any market moves from his Jackson Hole speech on Friday.