Cerebras Systems swung to a second-quarter loss despite lifting its full-year outlook. Shares fell 16% to $219.60 in after-hours trading on Wednesday.

StubHub Holdings wasn't able to translate surging revenue from the World Cup into a profit in its second quarter. The stock fell 13% to $7.39 after the bell.

Cisco Systems reported a higher second-quarter profit and revenue growth, driven by AI demand. Still, the stock fell 4.1% to $118.80 after hours.

EnerSys reported revenue growth and a higher profit in the first quarter. Shares rose 12% to $208.70 after the bell.