U.S. stocks ended mixed on Friday, with Nasdaq closing 1.8 percent lower, as tech giants stocks tumbled.

The Dow Jones Industrial Average was up 89.44 points, or 0.42 percent, to 21,271.97. The S&P 500 lost 2.02 points, or 0.08 percent, to 2,431.77. The Nasdaq Composite Index shed 113.85 points, or 1.80 percent, to 6,207.92.

Big tech stocks dragged the Nasdaq lower as Apple, Facebook, Amazon, Netflix and Google-parent Alphabet all fell more than three percent.

Meanwhile, investors digested former FBI Director James Comey's testimony. Comey on Thursday told Congress the contents of his interactions with U.S. President Donald Trump since election day, amid concerns that Trump tried to interfere with an ongoing probe on Russia.

U.S. stocks have posted solid gains after Trump's election, as market expectations for tax reforms, deregulation and infrastructure spending were a key catalyst.

But turmoil in Washington triggered market concerns on whether the Trump administration could continue to push its reform agenda.

Overseas, investors also digested a widely unexpected result of the Britain's general election.

As British Prime Minister Theresa May gambled her political future on calling for a snap general election seven weeks ago, results from Thursday's election showed that her party can not form a majority government.

The results sent the British pound lower to its weakest level since April 18 against the U.S. dollar.