Why is Applied Optoelectronics stock rallying today?

Applied Optoelectronics stock rose 5.0% in pre-open trading as investors digested a mixed but ultimately encouraging Q3 2026 earnings report released after the close on November 5, which showed the company beating both earnings and revenue estimates while simultaneously disclosing a landmark supply agreement with a major hyperscale data center customer.

The company posted Q3 non-GAAP EPS of $0.17, beating estimates by $0.03, alongside revenue of $269.9 million, up 127.5% year-over-year and slightly above expectations.

Crucially, the company also said a new hyperscale customer agreement could generate $1 billion to $1.5 billion in revenue over three years, although a manufacturing expansion faces delays.

The initial market reaction to the earnings was sharply negative, as the Q4 guidance disappointed. While the company beat third-quarter estimates with revenue of $269.9M and adjusted earnings per share of $0.17, it lowered its fourth-quarter revenue guidance to a range of $385M to $420M, citing supply bottlenecks for digital signal processors.

Adding to concerns, CFO Stefan Murry warned that the company’s 2027 U.S. capacity expansion will take longer than planned due to construction logistics and delays in securing electrical power, pushing certain targets into the second half of that year.

However, CEO Thompson Lin’s disclosure that a second agreement with another customer was in the final stages and could be five times larger than the first agreement or more, and would include 800G products, lasers, and other items, is helping to shift sentiment in pre-market trading.

The broader market context is providing a meaningful tailwind for the partial recovery. The Nasdaq is up 1.8% today, offering a supportive environment for AI infrastructure and optical networking names that had been broadly punished. AI-linked stocks began falling on November 4 as election results emerged, with investors appearing worried about tighter data center rules and a slower build-out, which could hit suppliers such as Applied Optoelectronics.

Applied Optoelectronics had reported its sixth consecutive quarter of record revenue as demand for data center and cable television products more than doubled sales from a year earlier, a streak that underscores the underlying business momentum despite the near-term guidance miss.

Taken together, today’s pre-market recovery reflects a recalibration: the initial after-hours and intraday panic selling on November 5 appears to have been excessive relative to the fundamental picture.

Record revenue for a sixth straight quarter, fueled by AI and data center demand plus a new multiyear hyperscale deal, highlights how execution on large customer programs is reshaping Applied Optoelectronics’ earnings profile, with that kind of backlog giving the company better volume visibility for its high-bandwidth products.

With the Nasdaq rebounding and the hyperscaler deal providing multi-year revenue visibility, buyers are stepping back in during pre-market hours even as the stock remains well below its 52-week high.