Wix.com Ltd. faces a securities class action in the Northern District of Illinois after its shares fell 27% following the company’s Q1 2026 results and disclosures about rising artificial-intelligence costs. The case, Yappi v. Wix.com Ltd., et al., No. 26-cv-08852, covers investors who purchased or otherwise acquired Wix securities from Feb. 19, 2025, through May 12, 2026. The complaint alleges Wix overstated the competitiveness and performance of its AI offerings, including Base44 and Harmony, while understating the costs of developing and promoting them. Wix’s non-GAAP sales and marketing expenses reached $190.7 million, up 88% year over year, while its non-GAAP operating margin fell to 5% from 21% and quarterly operating expenses increased 46%. Hagens Berman, which is investigating the claims, said the lead-plaintiff deadline is Sept. 22, 2026. The allegations have not been adjudicated.