A Motley Fool columnist names Amazon, Alphabet, and Nvidia as top AI stocks to buy in November. Amazon and Alphabet fell after their latest earnings, which he calls short-sighted. Google Cloud revenue rose 103% in the third quarter, lifting Alphabet's overall growth to 25%. The stock still dropped more than 10% the next day. Amazon Web Services grew 39% and makes up 63% of Amazon's operating profits. Both companies plan to spend $200 billion or more on capital expenditure this year. Nvidia has guided for 70% revenue growth in 2027 and trades at 26 times trailing earnings, or 13 times next year's projected earnings. If it returned to 26 times, the columnist says, the stock would double.

Polymarket traders expected Nvidia to close October near $224, but the stock ended at $204.64, down 10.4% from its September 30 close of $228.38. Across 467 resolved Nvidia markets, the crowd's favoured outcome was right 78.8% of the time. For November, with shares near $208, Polymarket gives Nvidia a 70% chance of touching $216 and 18% odds of reaching $240. It prices a $184 touch at 31.5%. Earnings are due November 17. Memory price increases and guidance that excludes China data center revenue are flagged as downside risks. Management guided third-quarter revenue to $108.0 billion, plus or minus 2%. Wall Street's consensus 12-month target is $328.95.

November has historically been the best month for the S&P 500, averaging a 1.9% gain, according to Motley Fool research. April and December each average 1.4%. Election cycles fall in half of those years, so the effect holds regardless. Columnist Keithen Drury picks three stocks to buy: Nvidia, Micron Technology, and Alphabet. Nvidia grew revenue 106% in the second quarter, yet trades at 27 times earnings and 13.4 times next year's earnings. Micron makes memory chips in short supply and trades at 5.3 times this year's earnings. Alphabet fell more than 10% after earnings on negative cash flow. Drury says Google Cloud's 103% third-quarter growth justifies the spending.