Alphabet and Tesla both beat revenue expectations, yet their shares fell in after-hours trading due to heavy spending on AI infrastructure.

Big Tech's $600 billion AI spending spree faces scrutiny as Alphabet, Microsoft, Meta, and Amazon report earnings, with Bitcoin miners also pivoting to AI.

Alphabet stock drops over 4% after Gemini 3.5 Pro AI delay. With $180-190B capex and earnings due July 22, investors question Big Tech AI