Intel was one of the worst-performing stocks Friday, falling as much as 17% after the company announced its next-generation chips will be delayed.

The company expects a six-month delay in its 7-nanometer chip product, Intel said in its quarterly earnings release Thursday night.

Intel (INTC) shares closed Friday at $50.59, down $9.81 (16.24%).

Advanced Micro Devices, Intel’s competitor that already uses 7-nanometer products, rallied on Friday. The stock climbed about 11% and was the best performer in the S&P.

By contrast, Intel was the weakest stock in the S&P 500 and the Dow, as well as one of the weakest companies in the Nasdaq Composite midmorning. Intel’s Friday slump came as all three major US indexes traded lower, extending the prior session’s losses on a weaker-than-expected jobless claims report.

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“Intel had manufacturing issues with the 7-nanometer transistors, so there will be a delay in the release of the chips that include those transistors,” said David Madden, market analyst at CMC Markets.

Aside from the product delay, Intel’s third-quarter guidance was also weaker than hoped for, analysts said. Intel expects sales of $18.2 billion, down 5% from the prior year, and predicts arnings per share at $1.10, which would be a 22% yearly decline.

The company did beat analyst expectations for the second quarter, however.

Intel’s shares are on track to put an end to a three-week winning streak, as big tech names have led the stock market’s resurgence after the pandemic selloff in March. Intel shares are up more than 15% from their low point in mid-March, for example.

Market sentiment has been fizzling over the past few days as worries about the pace of the US economic recovery have resurfaced.