Stocks were mixed on Monday as investors prepare for the Federal Reserve's decision this week on interest rates, while bitcoin surged to a record high.

After Wednesday's rate decision, investors will watch the Friday morning release of November PCE data, which will help inform future Fed policy.

U.S. stock indexes drifted mostly higher in mixed trading ahead of a meeting by the Federal Reserve later this week that could set Wall Street’s direction into next year. The S&P 500 rose 0.4% Monday.