Enron short-seller Jim Chanos warns on Nvidia, AI bubble

The S&P 500 has gained almost 5% over the last five trading days. That steep rise looks the more significant when you consider that the index is up about 17% so far this year. Now investors are asking: Will the Santa rally show up next? Seasonal patterns suggest that December is usually one of the best-performing months for stocks. But — as the old saying goes — past performance is no guarantee of future returns. Experts warn that this year’s scenario differs from the usual playbook, with a possible Decem ...