The stock's gain followed the company's better-than-expected second-quarter report and management's strong guidance for the rest of the year.
Harmonic's second-quarter revenue of $74 million was down 12.8% year over year. But it was more than $4 million higher than analysts were expecting. The company's non-GAAP (adjusted) loss per share of $0.06 was narrower than the $0.13 loss analysts were expecting.
"Harmonic executed well, exceeding expectations despite challenging market conditions," said Harmonic CEO Patrick Harshman in the earnings release.
Importantly, the company saw growth in both its cable access and software-as-a-service revenue. In addition, its video software-as-a-service customer base rose 136% year over year to 66 customers.
Looking ahead, Harmonic aims to build on this momentum. Management says it expects to be profitable during the second half of 2020. Furthermore, Harmonic guided for full-year revenue between $349.5 million and $381.5 million. Analysts, on average, were expecting 2020 revenue of $339.4 million.