AAOI stock dips in premarket as Applied Optoelectronics heads into earnings week

Applied Optoelectronics shares jumped 9.8% to $47.87 in late morning Nasdaq trading on Monday, swinging between $41.56 and $49.00. By 11:15 a.m. EST, volume had surged past 3.7 million shares.

Applied Optoelectronics shares jumped 10.2% to $43.61 on Friday, wrapping up another choppy week for the stock. With U.S. markets closed Saturday, investors will be watching closely to see if the momentum continues when trading restarts Monday, Feb. 2. Roughly 12 million shares traded hands.

Applied Optoelectronics shares jumped 12.8% to $44.63 on Friday, after swinging between $37.95 and $48.03 in heavy trade. The stock’s session high matched its 52-week high, and volume topped 8 million shares versus a roughly 3 million-share average.

Applied Optoelectronics shares dropped 0.6% to $44.95 in early trading Thursday, following a 21% surge on Wednesday that pushed the stock to $45.23.

Applied Optoelectronics, Inc. shares fell nearly 11% on Monday, erasing an early jump that briefly lifted the stock above $41.

Applied Optoelectronics, Inc. enters the final trading days of 2025 with a familiar calling card: volatility. The fiber-optics supplier finished Friday’s session at $37.17, down 9.34% on the day, after trading as high as $41.38 and as low as $37.03. Volume came in around 3.83 million shares, marking an abrupt reversal after a powerful run that recently pushed the stock toward fresh highs.

Applied Optoelectronics, Inc. heads into the weekend after a sharp Friday selloff that reminded investors just how volatile “AI data center optics” plays can be—especially after a powerful multi-session run-up.

Applied Optoelectronics, Inc. heads into the weekend with investors digesting a sharp Friday decline that stood out even in a quiet, post-holiday tape. AAOI finished the Dec. 26 session at $37.17, down about 9.3%, with extended-hours pricing around $37.02 as of 7:59 p.m. ET. MarketBeat