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Allegro Microsystems (ALGM) closed at $30.13 on November 13, 2026, down 5.0% from the previous close, on volume of 1,181,801 shares (30-day average 3,320,791).

Key numbers
  • Last close: $30.13 (November 13, 2026)
  • 52-week range: $22.41 to $71.77
  • Market value: $5.6 billion
  • 30-day implied volatility (IV30): 74.7%
  • Option volume: 873 contracts (749 calls, 124 puts); 30-day average 1,474

Data as of November 13, 2026.

ALGM Stock Summary and Trading Ideas (Allegro Microsystems | NASDAQ:ALGM)

Charts for Today's Stock Price and Implied Volatility in Allegro Microsystems

13-Nov-2026

Stock Price & Volume | Full Chart

30-Day Implied Volatility | IV30 Full Chart

Trade Ideas for Best Option Strategies for ALGM by Theoretical Edge and Win Rates

Sentiment

Largest Multi-Leg Option Trades (30 Days)

#DateStrategyLegsContracts
1 Nov 4, 2026 Call Spread 18-Dec-2635 : 40 C 1,000
2-3 The next 2 largest trades are for Premium members. Start a 7-day free trial

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Ranked by contracts: multi-leg trades of 200 or more contracts on one day, through Nov 12, 2026. See the 10 largest for 30, 60 and 90 days

Trading Statistics

Key Ratios

Allegro Microsystems (ALGM) Frequently Asked Questions

What does Allegro Microsystems do?

Allegro Microsystems Inc is a designer, developer, fabless manufacturer, and marketer of sensor ICs and application-specific analog power ICs for automotive and industrial markets. Its Sensor IC allows customers to precisely measure motion, speed, position, and current, and Power ICs include high-temperature and high-voltage capable motor drivers, power management, and LED driver ICs. Its products are divided into three categories: SENSE, which includes Current Sensors, Switches, and Latches, and Interface ICs among others; REGULATE, which includes Regulators, ClearPower Modules, and LED Drivers; and DRIVE, which includes BLDC Drivers, Brush DC, and others. Product-wise, the firm derives the majority of its revenue from sales of Magnetic sensors.

What symbol and exchange does Allegro Microsystems shares trade?

Allegro Microsystems trades on the NASDAQ stock market under the symbol ALGM.

What is Allegro Microsystems stock price doing today?

As of November 13, 2026, ALGM stock price declined to $30.13 with 1,181,801 million shares trading.

What is Allegro Microsystems's Beta?

ALGM has a beta of 2.58, meaning it tends to be more sensitive to market movements. ALGM has a correlation of 0.26 to the broad based SPY ETF.

How much is Allegro Microsystems worth?

ALGM has a market cap of $5.62 billion. This is considered a Mid Cap stock.

How much money does Allegro Microsystems make?

Last quarter Allegro Microsystems reported $277 million in Revenue and $.26 earnings per share. This beat revenue expectation by $6 million and exceeded earnings estimates by $.03.

What is the highest and lowest price Allegro Microsystems traded in the last 3 year period?

In the last 3 years, ALGM traded as high as $71.77 and as low as $16.38.

What are the top ETFs holding Allegro Microsystems?

The top ETF exchange traded funds that ALGM belongs to (by Net Assets): IJH, VTI, VB, VGT, XSD.

Is Allegro Microsystems (ALGM) a good investment?

ALGM has outperformed the market in the last year with a return of +13.8%, while the SPY ETF gained +11.5%. However, in the most recent history, ALGM shares have underperformed the stock market with its stock returning -29.1% in the last 3 month period and -8.8% for the last 2 week period, while SPY has returned -2.1% and -1.9%, respectively.

What are the support and resistance levels for Allegro Microsystems (ALGM)?

ALGM support price is $30.10 and resistance is $33.32 (based on 1 day standard deviation move). This means that using the most recent 20 day stock volatility and applying a one standard deviation move around the stock's closing price, stastically there is a 67% probability that ALGM shares will trade within this expected range on the day.

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