ALGM
ALLEGRO MICROSYSTEMS, INC.
NASDAQ · Technology · Semiconductors · US
$33.17
+4.90%Price chart
Sep 18Sep 23Sep 28Oct 1Oct 6Oct 9Oct 14Oct 19
Key dataOct 19, 2026
Open$32.88
From 52W high−52.36%
Volume2.78M
Market cap$6.18B
P/E (TTM)409.5x
P/S (TTM)6.5x
Div yield—
Key dataOct 19, 2026
Open
$32.88
From 52W high
−52.36%
Volume
2.78M
Market cap
$6.18B
ValuationView details →
P/E (Fwd)
26.5x
EV/EBITDA
60.7x
P/E (TTM)
409.5x
RSI (14)
39.6
MomentumView details →
1D Return
+4.90%
YTD Return
+25.11%
SummaryUpdated Jun 1, 2026
Allegro MicroSystems, Inc. (NASDAQ:ALGM) is a semiconductor company founded in 1990 and headquartered in Manchester, New Hampshire. The company went public on October 29, 2020, and operates as a subsidiary of Japan's Sanken Electric Co., Ltd., though Sanken's ownership was reduced from 51% to 33% through a share repurchase in 2024. Allegro specializes in designing and manufacturing sensor integrated circuits and power management solutions primarily for automotive electrification and industrial automation applications. The company has established itself as a leader in magnetic sensing technology and serves customers globally through direct sales, distributors, and independent representatives.
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