NVIDIA U.S. stocks continued to decline after the session, now down more than 6%. The company expects inventory, purchasing commitments and related reserve charges related to H20 products to be $5.50 billion in the first quarter. Affected by Nvidia's after-hours plunge, the U.S. stock index fell in early Asia-Pacific trading on Wednesday, with S & P futures down 0.90%, Dow futures down 0.50%, and Nasdaq futures down 1.3%.