NASDAQ:ALGM | Historical Stock Price | ALLEGRO MICROSYSTEMS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2020-10-29 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$15.70$20.95$27.95$37.29$49.74$66.362020-10-292026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$26.66$26.66512,400
2020-12-30$25.58$25.58687,500
2020-12-29$26.58$26.58572,900
2020-12-28$26.03$26.03503,800
2020-12-24$24.79$24.79402,800
2020-12-23$24.81$24.811,223,700
2020-12-22$27.34$27.341,130,700
2020-12-21$26.14$26.14701,500
2020-12-18$25.36$25.363,677,300
2020-12-17$26.25$26.25862,500
2020-12-16$26.52$26.52876,800
2020-12-15$27.37$27.37540,200
2020-12-14$26.80$26.80303,300
2020-12-11$26.08$26.08559,700
2020-12-10$26.52$26.521,008,500
2020-12-09$25.37$25.37488,200
2020-12-08$26.60$26.60310,600
2020-12-07$27.74$27.74384,500
2020-12-04$28.00$28.00754,400
2020-12-03$27.12$27.12745,300
2020-12-02$25.71$25.71833,800
2020-12-01$24.73$24.73576,200
2020-11-30$23.95$23.95500,900
2020-11-27$25.41$25.41500,200
2020-11-25$24.00$24.00606,800
2020-11-24$23.63$23.631,171,100
2020-11-23$21.86$21.861,295,400
2020-11-20$22.79$22.79851,800
2020-11-19$22.53$22.53507,200
2020-11-18$21.60$21.60324,300
2020-11-17$21.96$21.96651,900
2020-11-16$21.02$21.02868,000
2020-11-13$20.82$20.82434,800
2020-11-12$21.95$21.95372,700
2020-11-11$21.98$21.98358,400
2020-11-10$21.84$21.841,003,000
2020-11-09$26.22$26.221,185,800
2020-11-06$24.00$24.001,125,800
2020-11-05$22.75$22.751,047,800
2020-11-04$21.00$21.006,056,400
2020-11-03$21.00$21.002,075,400
2020-11-02$19.75$19.751,640,600
2020-10-30$18.30$18.302,008,600
2020-10-29$17.70$17.7011,098,400