U.S. stocks dipped on Tuesday as investors gear up for what Federal Reserve chair Jerome Powell will say about the path of interest rates at a key conference later in the week. The Nasdaq slid more than 1% to its lowest in over two weeks as megacaps Nvidia and Microsoft lost 3.

Wall Street’s major averages slide on Tuesday, as investors look ahead to the kickoff of retail earnings season while also monitoring developments in the Ukraine-Russia conflict. The blue-chip Dow (DJI) trades near even while the benchmark S&P 500 (SP500) slid by 0.

A big week is coming up for the central bank as the Kansas City Fed’s annual Economic Policy Symposium kicks off Thursday in Jackson Hole, Wyoming. The prestigious event in the Grand Teton mountains has been used by Fed chairs as a venue for making crucial policy announcements.