Big Tech stocks are under sharp pressure today. The Big Tech stock crash today is hitting Microsoft Corp, Alphabet Inc, Meta Platforms Inc, NVIDIA Corporation, and Tesla Inc together. The Nasdaq is now down over 10% from its recent peak. Investors are reacting fast. Massive AI spending is raising concerns. Microsoft alone spent $37.5 billion on capex. Returns are still unclear. Legal risks are rising for Meta and Google after major verdicts. Oil near $97 is adding inflation fears. Rates may stay higher. That is hurting growth stocks. This Big Tech stock crash today reflects a shift from hype to real earnings.