Applied Optoelectronics Earnings Strengthen Outlook

Applied Optoelectronics (AAOI) reported fourth-quarter results on Feb. 26, 2026, showing narrower losses and expanding margins. Management said these Applied Optoelectronics earnings reflect a step change in scale as the company enters 2026, though growth will be limited by production capacity.

Quarter Results and Segment Mix

The company said in its earnings call that Q4 2025 revenue reached $134.3 million, up 34.0% year-over-year and 13.0% sequentially. Data-center sales accounted for $74.9 million, or 56% of the quarter, rising 69.0% year-over-year. CATV sales totaled $54.0 million, 40% of revenue, up 3.0%, while other revenue was $5.4 million, or 4%. Full-year 2025 revenue rose 83.0% to $456.0 million, with data-center sales increasing 32.0% to $196.0 million and CATV revenue nearly tripling to $245.0 million.

The company reported a non-GAAP gross margin of 31.4%, above 31.0% in the prior quarter and 28.9% a year earlier, driven by a higher product mix and cost reductions. It posted a non-GAAP net loss of $0.6 million, or $0.01 per share on 70.3 million basic shares, and a GAAP net loss of $2.0 million, or $0.03 per share. “We are pleased to deliver record fourth quarter results that were in line with or better than our expectations and which cap off the strongest year in our company history,” Chief Executive Dr. Thompson Lin said.

2026 Outlook and Guidance

Management guided Q1 2026 revenue between $150 million and $165 million, with a non-GAAP gross margin of 29.0% to 31.0%. The non-GAAP net loss is expected between $7.0 million and $0.3 million, or a $0.09 loss to breakeven per share on 76.4 million shares. Operating expenses are forecast at $50 million to $57 million for the quarter.

Executives projected 2026 revenue exceeding $1.0 billion and non-GAAP operating profit above $120.0 million, emphasizing that growth will be constrained by production capacity rather than demand. They expect non-GAAP profitability starting in Q2 and a gross margin approaching 40.0% as higher-margin products and efficiencies scale. Management forecast steady sequential growth in the first half, accelerating in the second half with new capacity and product qualifications. They noted 800G revenue was lower than expected in Q4 and shifted into Q1, with potential for a substantially larger 800G contribution in Q2. Commentary included a near-term monthly revenue midpoint on a higher-speed mix approaching several hundred million dollars by mid-Q2.

Balance Sheet and Capital Plans

At Dec. 31, 2025, the company held $216.0 million in cash equivalents, short-term investments, and restricted cash, up from $150.7 million at the end of Q3. Inventory rose to $183.1 million from $170.2 million, and nonconvertible debt stood at $67.3 million. Capital expenditures totaled $84.0 million in Q4 and $209.0 million for the full year, exceeding prior guidance due to stronger demand. Tariffs directly impacted Q4 CapEx by $3.1 million, with the company acting as importer for most 2025 tariff shipments.

A Securities and Exchange Commission filing dated Feb. 26, 2026, revealed an equity distribution agreement allowing up to $250.0 million of at-the-market common-stock sales, with Raymond James and Needham as agents. Management said 2026 capital-expenditure plans remain under review. Customer concentration remains high: the top 10 customers accounted for about 96.0% of revenue, including one CATV customer representing roughly 39.0% and two data-center customers about 31.0% and 21.0%, respectively.