韓國KOSPI指數日內漲幅擴大至5%，現報7859.30點。

Spot silver fell 1.00% intraday to $67.47/oz.

OpenAI said it confidentially filed an S-1 registration and preemptively published the document after anticipating a leak. The company said IPO timing is uncertain; the filing preserves the option to accelerate a public listing when it judges the timing right. The statement indicates OpenAI is positioning to capture investor demand from the AI boom; competitor Anthropic is also advancing toward a public listing.