The tech-heavy Nasdaq dropped a fourth straight day in New York. With big-cap tech like Apple sagging, sharp swings in chip stocks rippled across the index.

Despite strong earnings from some chipmakers like Micron, price fatigue and profit-taking left the market directionless. With elevated big-tech valuations, even small negatives draw outsized reactions.

Investors are watching the durability of the AI investment cycle and the rate path, as signs of solid AI demand coexist with overheating fears in a mixed phase.

Wall Street's moves feed through, with a lag, to Asian tech stocks in Korea and Taiwan, whose chip and component makers swing along with global supply chains.

For Chinese investors in Korea, U.S. equities are a core variable—advice is to watch the trend, not the daily noise.