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.

The S&P 500 edged up 0.2% on Wednesday after the Federal Reserve kept interest rates unchanged, as anticipated. The Nasdaq Composite rose 0.4%, while the Dow Jones Industrial Average added just 28 points, or 0.1%.

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