NASDAQ:ALGM 6 January 2026 - 29 January 2026

Allegro MicroSystems shares jumped 8.5% to $37.50 Thursday after reporting a 29% year-over-year rise in quarterly sales to $229.2 million and issuing strong March-quarter guidance. The stock outperformed the semiconductor sector, with rivals ON Semiconductor and NXP Semiconductors each down about 4%. Allegro forecast fourth-quarter sales of $230–$240 million and non-GAAP EPS of $0.14–$0.18.

Allegro MicroSystems surged 6.5% to $32.78 Wednesday after announcing an analyst day for Feb. 18 in Boston. The move outpaced chip sector peers as the Philadelphia Semiconductor Index fell 1.7%. Allegro will report Q3 results Jan. 29, with CEO Mike Doogue and CFO Derek D’Antilio set to host a call at 8:30 a.m. ET. The analyst day will be hybrid, with limited in-person attendance and a webcast.