Why Alphabet Stock Just Popped

Gigantic Alphabet's $2.2 trillion market cap just got a bit bigger, thanks to ChatGPT.Alphabet (GOOG 1.67%) (GOOGL 1.58%) stock jumped nearly 3% earlier in the day before retreating to about a 1.3% gain as of 2 p.m. ET Tuesday. It's not a huge increase -- but then again, you don't expect $2.2 trillion market cap companies to make huge increases in percentage terms all that often.What's interesting about the gain, though, is what caused it.According to a Reuters exclusive report this morning, artificial inte ...