Applied Optoelectronics (AAOI) shares plummeted 8.03% during intraday trading on Wednesday, marking a significant downward move for the optical communications company.

The decline is attributed to ongoing pressure from the company's first-quarter earnings miss, where it reported an unexpected EPS loss of $0.12. Market concerns are also focused on the company's $600 million at-the-market equity financing program, which investors view as creating near-term dilution risk for existing shareholders.

Broader weakness in the communication equipment sector further contributed to the selloff, with sector peers including Lumentum, Ciena and Cisco also trading lower. These headwinds outweighed recent positive catalysts for AAOI, including approval for its 800G optical module production and endorsement from a key investor.