Wall Street has spent months betting on the artificial intelligence revolution. This week, investors finally got a closer look at how the biggest players are turning that promise into business results and the verdict was far from unanimous. Google suffered a historic selloff, Microsoft earned a more favorable reaction, and Amazon delivered a mixed report that left investors questioning its performance. Yet despite the turbulence, the broader market has held up surprisingly well. The key takeaway: the AI trade is still alive, but investors are becoming much more selective about who deserves their confidence. Big Tech Google Takes the Biggest Hit $Alphabet(GOOG)$ endured a brutal session after its earnings report disappointed investors. Shares plung