Stock futures fell in early trading Tuesday ahead of quarterly earnings reports from several megacap technology companies.
Futures for the Dow Jones Industrials sank 90 points, or 0.3%, to 34,944.
Futures for the S&P 500 slipped 8.25 points, or 0.2%, to 4,406.
Futures for the NASDAQ Composite Index dropped 2.75 points to 15,115.
Shares of Tesla rose about 2.3% in pre-market trading following a better-than-expected second-quarter earnings report. The electric vehicle maker passed $1 billion in quarterly net income for the first time.
Second-quarter earnings season continues with Google parent Alphabet, Microsoft and Apple set to report after the bell Tuesday.
JetBlue, UPS, General Electric and Starbucks are also scheduled to post earnings Tuesday.
The Federal Reserve's two-day policy meeting begins Tuesday. Investors are awaiting insights into the central bank's monetary policy.
The Federal Open Market Committee will release a statement when the meeting concludes Wednesday, followed by Chairman Jerome Powell's news conference.
Overseas, in Japan, the Nikkei 225 index gained 0.5%, while in Hong Kong, the Hang Seng index continued to struggle Tuesday, losing 4.2%,
Oil prices docked three cents to $71.88 U.S. a barrel.
Gold prices slipped 60 cents to $1,798.60 U.S. a pound.