Federal Reserve Chair Jerome Powell is slated to speak on Friday at the Fed’s annual gathering of central bankers in Jackson Hole, Wyoming, and Evercore ISI warns that market participants might not love what he has to say.

Wall Street’s major averages finished a muted on Monday as investors shift their focus to a wave of retail earnings and Federal Reserve Chair Jerome Powell’s upcoming speech at the Jackson Hole symposium later this week.

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.