Alphabet's free cash flow sinks further, Q3 capex expectations miss in worrying sign for AI trade [https://www.cnbc.com/2026/10/28/alphabet-googl-earnings-q3-2026.html?__source=iosappshare%7Ccom.apple.UIKit.activity.CopyToPasteboard](https://www.cnbc.com/2026/10/28/alphabet-googl-earnings-q3-2026.html?__source=iosappshare%7Ccom.apple.UIKit.activity.CopyToPasteboard)