Daily trading records
Allegro MicroSystems Stock Price on September 17, 2026
Direct answer
Allegro MicroSystems closed at $33.11 on September 17, 2026.
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Review Allegro MicroSystems's price trend and period performance.
The chart connects verified session closes from June 23, 2026 through September 17, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
-6.12%
From the September 10, 2026 close of $35.27 to $33.11 on September 17, 2026.
20-session performance
-13.66%
From the August 19, 2026 close of $38.35 to $33.11 on September 17, 2026.
60-session performance
-40.36%
From the June 23, 2026 close of $55.52 to $33.11 on September 17, 2026.
Verified data
- Open
- $34.44
- High
- $34.5325
- Low
- $32.995
- Close
- $33.11
- Volume
- 1,961,248
- Prior-close change
- +$0.09 (+0.27%)
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Read the frequently asked questions.
What was Allegro MicroSystems's closing price on September 17, 2026?
Allegro MicroSystems closed at $33.11 on September 17, 2026.
What were Allegro MicroSystems's open, high and low on September 17, 2026?
The open was $34.44, the high was $34.5325 and the low was $32.995.
How much did Allegro MicroSystems change from the prior close on September 17, 2026?
The change from the prior close was +$0.09 (+0.27%).
What was Allegro MicroSystems's volume on September 17, 2026?
Trading volume was 1,961,248 shares.
What is the source for Allegro MicroSystems's daily prices?
Daily aggregate prices are provided by Polygon.