The tech-heavy Nasdaq Composite led markets lower and is set for its second-worst week this year. Zamek/VIEWpress/Corbis/Getty Images New York —

Tech stocks took a bruising this week as nerves persist about a potential artificial intelligence bubble.

The tech-heavy Nasdaq Composite was down 1.6% on Friday and on track for its worst week since early April, when President Donald Trump’s announcement of so-called reciprocal tariffs rocked markets.

The benchmark S&P 500 was down 1%. The blue-chip Dow was down 300 points, or 0.65%.

After a monthslong rally, skepticism is mounting about whether high-flying tech stocks will continue to produce superior returns. The sell-off in tech weighed on the broader market.

Wall Street’s fear gauge, the CBOE Volatility Index, jumped 16%, signalin

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