US stock market loses $4 trillion in value as Trump plows ahead on tariffs

TradingKey - During the week of May 18 ET, SpaceX will launch a 5-for-1 stock split, clearing high-price barriers for the world’s largest-ever IPO. Boosted by the news, the U.S. commercial space sector opened higher across the board on Monday.

TradingKey - The Nikkei 225 Index edged up 0.6% at the open, with intraday gains steadily expanding to 1%. In contrast, South Korea's KOSPI Index exhibited a weak consolidation pattern, falling 1.2% early in the session before intensified selling pressure pushed the decline to 2%.

U.S. tech stocks fell on AI bubble fears and semiconductor pressure, while the Dow rose. Geopolitically, Trump postponed an Iran military strike at the request of Gulf allies, easing crude oil prices. Meanwhile, Nvidia began mass shipping its agent-specific Vera CPUs to top AI laboratories.

TradingKey - Micron Technology has become one of the biggest winners of AI in the semiconductor industry. Previously viewed mostly as a cyclical manufacturer of memory chips, Wall Street is now starting to see Micron as an important AI infrastructure company.

TradingKey - SpaceX IPO targets June 12, 2026 on Nasdaq (SPCX). Raising up to $75B at $1.75T valuation — largest IPO in history. Starlink 9M+ users, $15–16B 2025 revenue. Dual-class shares. Musk keeps control.