Taiwan's stock market jumped to a two-month high after Nvidia put money into chip designer MediaTek — good news for tech investors and a strong start to September.

• MediaTek hit its daily price limit on the Nvidia investment, pulling the whole market up with it.
• Chip-related stocks rallied broadly, from packaging and wafers to cooling parts and equipment makers.
• Taiwan's benchmark index rose more than 800 points to its highest close since early July, outpacing the U.S., Japan and South Korea.
• Foreign investors, local funds and dealers all bought, and foreign traders sharply cut their bets against the market.
• A big semiconductor trade show and Apple's product launch are drawing money in ahead of the busy season.

Outlook: Traders expect the rally to hold in the near term, with trading volume the main thing to watch.