U.S. Lawmakers Invest in Semiconductor Materials Stocks, Market Cap Soars by 2.4 Trillion Won in One Day

Entegris Inc. (NASDAQ: ENTG) saw its shares rise 6.11% to $178.50 each (about KRW 240,000), boosting its market capitalization by roughly $1.77 billion (approximately KRW 2.4 trillion) in a single day. Trading volume reached around 2.35 million shares, lifting total market cap to about $27.2 billion (roughly KRW 37 trillion) and highlighting strong investor interest in semiconductor materials and equipment stocks.

On April 30, Entegris reported first-quarter FY2026 results, delivering earnings per share of $0.70 and revenue of $823.9 million—both above market expectations. However, by guiding second-quarter revenue to a conservative range of $815 million to $845 million, the company’s stock experienced a short-term pullback.

Recently, U.S. Representative April McClain Drayney disclosed in a STOCK Act filing that she purchased between $1,001 and $15,000 worth of Entegris shares on March 31, reigniting Capitol Hill interest in the stock.

Entegris is a leading provider of contamination control and advanced materials for semiconductor manufacturing, supplying precision filters, specialty chemicals, and wafer-handling solutions that enhance fab yields and process stability worldwide.

Headquartered in Billerica, Massachusetts, the company operates production and R&D facilities in key semiconductor markets, including South Korea and Taiwan. In 2024, it was selected by the U.S. Department of Commerce as a recipient under the CHIPS Act, positioning Entegris to benefit from U.S. initiatives to strengthen the domestic semiconductor supply chain.