Tech stocks mostly rose in premarket trading on Friday. Alphabet up 6%; Meta Platforms up 4%; Tesla, SMCI, Palantir, Amazon up 2%; Nvidia, Oracle up 1%; Intel fell 5%.

Intel forecast second-quarter revenue and profit below Wall Street estimates on Thursday, casting a shadow over new CEO Lip-Bu Tan's first round of earnings at the helm, against the backdrop of a raging Sino-U.S. trade war.

In a conference call with investors, Tan also gave the first hints of sweeping plans to revitalize Intel's culture of innovation, including a mandate for employees to return to the office four days a week, fewer meetings and stripping out unnecessary internal administrative work in favor of core engineering work.

The Santa Clara, California-based company expects revenue of $11.2 billion to $12.4 billion for the June quarter, compared with analysts' average estimate of $12.82 billion, according to data compiled by LSEG.

Google parent Alphabet reassured jittery tech investors that its AI investments were powering returns at its crucial ad business on Thursday, downplaying any impact from global economic uncertainty, for now.

The search giant's first-quarter profit and revenue beat expectations, and the company said it would buy back $70 billion in stock, pushing its shares up 4% after market and adding $75 billion to its market value.

Alphabet reaffirmed its ambitious AI build-out plans and backed its $75 billion capex guidance for the year, offering hopes for investors in Meta Platforms, Inc. and Amazon.com, whose shares also rose in aftermarket trading.

U.S. President Donald Trump's trade policy has triggered worries of an economic downturn, prompting companies to rethink their spending on advertising. It has also fuelled investor concern that tech giants may have to pause or slow their ambitious AI infrastructure build-outs due to rising costs from tit-for-tat tariffs between the U.S. and China.