U.S. stock-index futures indicated a mildly lower open Monday, after closing higher for a fourth consecutive week on Friday.
The coming week is the busiest of the second-quarter earnings season, with key names including Apple and Facebook in the technology sector, Caterpillar in the industrial sector and Exxon Mobil and Chevron in the energy industry.
Kimberly-Clark reported earnings that beat on both the top and bottom line, while noting good performance in a challenging economic environment.
Sprint reported slightly better-than expected revenue as heavy discounts helped it attract the most postpaid subscribers on a net basis for any first quarter in nine years, Reuters said. However, the fourth-largest U.S. wireless carrier's net loss widened to $302 million, or 8 cents per share, from $20 million, or 1 cent per share, a year earlier, the newswire reported.
Gilead Sciences and Texas Instruments are also due to post quarterly results.
U.S. crude oil futures traded about 1.5 percent lower near $43.50 a barrel as of 8:55 a.m. ET.
There are no major U.S. economic data due out on Monday, with new home sales out on Tuesday and durable goods orders and the Federal Reserve interest-rate decision on Wednesday.
"The Fed is overwhelmingly expected to keep the Federal Funds Rate unchanged at 0.25-0.50 percent," Emily Nicol, economist at Daiwa Capital Markets, said in a note on Monday.
"Likely of more interest will be the post-meeting press statement, which will be watched closely for the Committee's assessment of post-UK-referendum risks and therefore any hints about the likely timing for future rate increases," she added.
In corporate news, Verizon announced Monday plans to acquire Yahoo for $4.8 billion in cash. Shares of Verizon were more than half a percent higher in pre-market trade, while Yahoo traded more than half a percent lower.