The Dow closed at a record high on Friday. Investors see more gains ahead as the Fed kicks off a new cycle of easing interest rates.

Federal Reserve Chair Jerome Powell is known for providing clear signals about the central bank’s next interest rate move in order to avoid roiling markets. But Wall Street was mostly clueless this week when it came to predicting how big a rate cut the Fed would deliver on Wednesday.

Stocks in September have been negative for four years in a row but momentum from the rate cut could bring change.