A quick rundown of last night's U.S. stock market—first, the data (AA, Reuters, Bloomberg):

1. Nasdaq -5.52%, S&P 500 -4.35%, Dow -3.44%—the biggest one-day drop in 19 months. The previous one was during the tariff turmoil in April 2025.
2. Philadelphia Semiconductor Index down 12.2% in a single day, bringing its loss for the week to nearly 16%.
3. The VIX fear index surged 61.89% overnight to 26.89.
4. South Korea's KOSPI briefly fell more than 8% this morning, triggering a trading halt. The Nikkei fell about 6%, and TSMC dropped 8.5%.
5. The U.S. 2-year Treasury yield fell 12 basis points to 4.46%, as money flowed into Treasuries and safe-haven currencies.

The standard answer from the market: "A Democratic sweep in the midterms means tighter regulation of AI and data centers."

But I want to look one level deeper: the election result was only the trigger. Doubts about "when massive AI investments will turn into profits" had already been weighing on chip stocks before the election. The Nasdaq is already down 12% from its record high a month ago.
If this is just political panic, the market will recover quickly after the drop. If this is a repricing of returns, then this is only the beginning.

Which side are you on: a selloff sparked by political fears, or a bubble springing a leak on its own?
#美股 #AI #Semiconductors