BWX Technologies shares surged 11.3% in overnight trading after the nuclear components and services provider posted second-quarter results that beat Wall Street estimates and raised its full-year outlook, fueled by strong government operations performance and robust demand across its nuclear portfolio.

Palantir raised its annual revenue forecast for the second time this year, expecting sustained demand for its AI-linked services from businesses and governments. The shares gained 5.1% in overnight trading.

Figma shares dropped another 3.4% in overnight trading. The company slumped 27% on profit taking on Monday, as euphoria over the design software firm waned days after its blockbuster initial public offering.

Latin American e-commerce giant MercadoLibre missed analysts' estimates for second-quarter net profit and core earnings, as increased free shipping in Brazil drove sales up but also hit margins. The shares dropped 5.5% in overnight trading.

Online telehealth company Hims & Hers Health missed Wall Street estimates for second-quarter revenue, as it lost subscribers for compounded versions of weight-loss drugs, sending its shares down 13.4% in overnight trading.

Vertex Pharmaceuticals stock sank 14% in overnight trading, after the company said it would not progress a next-generation pain treatment into advanced testing.

Navitas Semiconductor shares plunged 15.3% after the gallium nitride (GaN) and silicon carbide (SiC) power semiconductor company reported a substantial earnings miss for the second quarter, despite slightly exceeding revenue expectations.

SES AI reported its second-quarter earnings for 2025, revealing a revenue shortfall against forecasts, sending its shares down 16.8% in overnight trading.