US Markets

Futures narrowly mixed despite Amazon beat

U.S. stock futures trimmed gains to indicate a flat to mildly higher open for Wall Street shares on Friday, following a stronger-than-expected earnings report from online retailer Amazon.

Earnings remain in focus although markets have fewer reports to digest compared with Thursday.

Scott Mlyn | CNBC

Biogen, Johnson Controls, State Street, Rockwell Collins, American Airlines and VF Corp post earnings this session, while June new home sales data are out at 10 a.m. ET and Markit's July flash manufacturing PMI is released at 9:45 a.m. ET.

Read More Early movers: CI, AMZN, SAVE, BIIB, MCO, T & more

In dealmaking news, Anthem said on Friday it would buy Cigna in a deal valued at $54.2 billion, by membership.

News that China's manufacturing activity tumbled to a 15-month low in July, dealing a blow to Asian stock markets, could temper sentiment on Wall Street. Commodities meanwhile faced further selling with gold prices falling to a new five-year low.

Still, stock futures attempted to signal a flat to positive open for Wall Street, with Nasdaq futures up slightly but the S&P and Dow futures mildly lower.

European stocks were mixed amid earnings and an attempt to shake off Asia's negative close.

Amazon shares soared more than 17 percent in after-hours trade on Thursday after the company reported an unexpected quarterly profit.

Read MoreAmazon sales rise 20%, easily top most optimistic estimates

The news from Amazon compares with mostly lackluster earnings on Thursday that pushed U.S. markets broadly lower.

"I like technology here and I like the Nasdaq although we have seen some (earning) misses," Michael Gurka, founder and president of BruinHill Partners told CNBC on Friday. "I am positive on most of these earnings," he added.