Nasdaq, S&P 500 slip as tech drags at end of choppy week

Meta shares drop as Russia opens criminal probe; all three major indexes tracking weekly losses

The tech-heavy Nasdaq and the S&P 500 indexes fell on Friday at the end of a volatile week on escalating tensions in Ukraine and worries over higher inflation, with focus turning to one of the most-anticipated Federal Reserve's policy meetings next week.

Markets had opened higher after Russian President Vladimir Putin said there were "certain positive shifts" in talks with Ukraine, without providing any details.

"That suggests at this point in time even though there was a statement from Putin and he said it was positive, there's still not a whole lot of trust that it is officially going to be followed