TSMC Pours Additional $100 Billion Into Arizona as Chip Profits Soar, Even as Asia Selloff Deepens

(WS News) – Taiwan Semiconductor Manufacturing Company said it will invest an additional $100 billion in its Arizona operations after posting a 77% jump in second-quarter profit, even as chip stocks across Asia tumbled on fears that the artificial-intelligence-driven rally has outrun its valuations.

Record Profits Fund a Bigger US Bet

The world’s largest contract chipmaker is doubling down on its US footprint at a time when demand for advanced chips used in AI data centers continues to outstrip supply. The fresh $100 billion commitment builds on TSMC’s existing multi-billion-dollar Arizona expansion and signals confidence that the current AI infrastructure boom has staying power, regardless of near-term market jitters.

Asia Markets Tell a Different Story

The investment news landed on a rough day for semiconductor stocks elsewhere in the region. South Korea’s Kospi index, seen as a bellwether for AI-related investment, slumped sharply before paring losses ahead of a market holiday, while Japan’s Nikkei 225 also fell, dragging the broader MSCI Asia Pacific equities gauge lower and snapping a two-day winning streak. Investors have grown more cautious about whether current valuations in AI-linked chip stocks can be sustained.

The divergence highlights a split in how markets are pricing the AI buildout: continued confidence in the underlying demand for advanced chips, paired with growing wariness about how richly that demand has already been priced into share prices.

What It Means Going Forward

TSMC’s move adds to a wave of major capital commitments from chipmakers this year aimed at expanding manufacturing capacity outside Taiwan, partly in response to US policy pressure to diversify supply chains. Whether that spending is matched by steady long-term demand will likely remain a key question for markets in the months ahead.