Earnings D-1: EV Power Chip Leader Sees Market Cap Increase of 570 Billion Won in a Day

Allegro MicroSystems Inc. (ALGM) closed at $34.55 on the Nasdaq, up 5.88%. Trading volume was about 3.6 million shares, and its market capitalization reached roughly $6.4 billion (approximately KRW 9.2 trillion). The gain added about $400 million to its market cap, or around KRW 570 billion.

The company is set to release its quarterly results before the market opens on January 29 (local time), and investor expectations have risen following a month of strong share-price performance. This month, Allegro refinanced its capital structure by securing a new $285 million loan maturing in 2030 to replace an existing 2028 facility, and it has scheduled an Analyst Day for February 18.

Allegro MicroSystems is a fabless chip designer supplying power and sensing semiconductors for electric vehicles, industrial automation, data centers, and renewable energy markets, with particular expertise in motion control and energy-efficiency solutions. In 2025, its strategic value was underscored when onsemi proposed a $35.10-per-share acquisition, although the offer was ultimately withdrawn.