Law firm probes Amplitude investors over alleged securities fraud after profit guidance cut.

Pomerantz LLP is investigating claims on behalf of Amplitude, Inc. investors regarding possible securities fraud following the company's May 2026 announcement lowering its fiscal year 2026 non-GAAP operating income guidance significantly. The revised outlook suggested margin compression and raised concerns about rising costs related to partnerships and AI investments, leading to a sharp 21.41% drop in Amplitude's stock price. The investigation aims to determine if Amplitude's officers or directors engaged in unlawful business practices, potentially impacting investor rights and future legal actions.