Nasdaq · ALGM · stock
Allegro Microsystems, INC. (ALGM) stock price history
Every Nasdaq trading session of Allegro Microsystems, INC. from Oct 29, 2020 to Sep 28, 2026: 1,484 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
ALGM adjusted close, 2020 to 2026
- $69.62
- All time high, 2026
- $71.77
- 52 week high, $22.41 low
- 1,484
- Daily sessions since 2020
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2020 to 2026 series and minute bars.
ALGM key facts
- Allegro Microsystems, INC. (ALGM) closed at $36.94 on Sep 28, 2026 on Nasdaq.
- ALGM's all time high close is $69.62, set on Jun 30, 2026; its all time low close is $16.53 on Apr 21, 2025.
- ALGM's 52 week range is $22.41 to $71.77.
- ALGM returned +24.3% over the year to Sep 28, 2026 and +11.9% over five years.
- Since Oct 29, 2020 ALGM returned +109%, +13.2% a year compounded.
- ALGM's deepest drawdown was -68.6% from Jul 18, 2023 to Apr 21, 2025.
- DataCedar holds 1,484 daily sessions of ALGM history from Oct 29, 2020 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
ALGM price chart, 2020 to 2026
ALGM returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +3.3% |
| 3 months | -36.2% |
| 6 months | +22.6% |
| Year to date | +37.7% |
| 1 year | +24.3% |
| 3 years | +13.9% |
| 5 years | +11.9% |
| 10 years | n/a |
| Since Oct 29, 2020 | +108.7% |
| Compound annual growth, 5.9 years | +13.2% |
ALGM records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $69.62 on Jun 30, 2026
- All time low close
- $16.53 on Apr 21, 2025
- 52 week high
- $71.77 on Jun 30, 2026
- 52 week low
- $22.41 on Nov 21, 2025
- Deepest drawdown
- -68.6% from Jul 18, 2023 to Apr 21, 2025, recovered Jun 3, 2026
- Best single session
- +22.7% on Apr 9, 2025
- Worst single session
- -16.7% on Nov 10, 2020
- Volatility, 1 year annualised
- 66.3%
- Sessions closing higher, 1 year
- 51%
- Growth of 1 since 2020
- 2.1×
- Best calendar year
- 2021, +36%
- Worst calendar year
- 2024, -28%
ALGM price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2020 starts on Oct 29, 2020; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $27.00 | $71.77 | $26.18 | $36.94 | +40.0% | 471M | 185 |
| 2025 | $22.10 | $38.45 | $16.38 | $26.38 | +20.7% | 617.3M | 250 |
| 2024 | $29.90 | $33.26 | $18.59 | $21.86 | -27.8% | 490.8M | 252 |
| 2023 | $30.26 | $53.05 | $24.66 | $30.27 | +0.8% | 365.2M | 250 |
| 2022 | $36.60 | $37.29 | $19.20 | $30.02 | -17.0% | 175.6M | 251 |
| 2021 | $26.98 | $38.28 | $22.05 | $36.18 | +35.7% | 188.5M | 252 |
| 2020 | $19.40 | $29.48 | $16.78 | $26.66 | n/a | 53.3M | 44 |
ALGM monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $36.94 | +1.9% |
| August 2026 | $36.25 | -12.7% |
| July 2026 | $41.50 | -40.4% |
| June 2026 | $69.62 | +45.4% |
| May 2026 | $47.87 | -1.3% |
| April 2026 | $48.50 | +53.8% |
| March 2026 | $31.53 | -13.5% |
| February 2026 | $36.47 | -1.2% |
| January 2026 | $36.91 | +39.9% |
| December 2025 | $26.38 | -1.2% |
| November 2025 | $26.69 | -10.8% |
| October 2025 | $29.92 | +2.5% |
About the ALGM data
Daily bars. 1,484 sessions from Oct 29, 2020 to Sep 28, 2026, one row per Nasdaq trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are Nasdaq trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Oct 29, 2020, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/ALGM/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Nasdaq
Common questions
ALGM share price history
