POET Technologies Inc (POET) experienced a significant 24-hour plunge of 12.21%, reflecting heightened investor concerns over the company's legal and regulatory challenges.

The sharp decline comes as multiple law firms have filed securities class action lawsuits against POET Technologies. The complaints allege that the company misrepresented its tax status, as it was likely deemed a passive foreign investment company (PFIC) under U.S. tax laws, which carries negative tax implications for U.S. stockholders. Additionally, the lawsuits allege that a company defendant violated a non-disclosure agreement by publicly discussing POET's business agreements, and that statements about the company's business, operations, and prospects were materially false and misleading.

These legal developments have introduced significant uncertainty for investors, particularly for a stock that has exhibited extreme volatility in recent weeks. The lawsuits add to the challenges facing a company with a market capitalization around $800 million against minimal revenue, maintaining its status as a highly speculative investment.