Investors focus on the Fed's policy decision and Chair Jerome Powell's news conference. Earnings from Meta and Microsoft are due after the closing bell.

Norwegian Cruise Line NCLH slipped 0.3% while fellow MarketSurge 250 name and rival cruise line Carnival CCL turned higher, rising less than 0.1%. Early movers on the stock market today were Broadcom AVGO, Palantir Technologies PLTR, Tesla TSLA and Uber Technologies UBER.

Starbucks stocks slipped 0.2 per cent after reporting a weaker profit than analysts expected as it tries to turn around its operations.