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Daily valuation snapshot
Allegro MicroSystems, Inc. Common Stock: source evidence dated 2026-10-09.
- Daily close (USD)
- $35.57
- Market capitalization (USD)
- $6,630,320,776.22
- Price / earnings (TTM)
- 466.89
- Price / book
- 6.86
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Company overview
Allegro MicroSystems, Inc., together with its subsidiaries, designs, develops, manufactures, and markets sensor integrated circuits (ICs) and application-specific power ICs for motion control and energy-efficient systems. Its products include magnetic sensor ICs, such as position, speed, and current sensor ICs; and power ICs comprising motor driver ICs, such as regulator, power management ICs, and LED driver ICs, and isolated gate drivers. The company sells its products to original equipment manufacturers and distributors primarily in the automotive and industrial markets through its direct sales force, third party distributors, independent sales representatives, and consignment. It operates in the United States, rest of the Americas, Europe, Japan, Greater China, South Korea, and other Asian markets. The company was founded in 1990 and is headquartered in Manchester, New Hampshire.
Daily valuation snapshot
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These values come from the daily market snapshot dated 2026-10-09. TTM means trailing twelve months. Use the market date when comparing ALGM with another company.
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| Daily close (USD) | $35.57 |
| Market capitalization (USD) | $6,630,320,776.22 |
| Price / earnings (TTM) | 466.89 |
| Price / book | 6.86 |
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Read ALGM's valuation metrics
Company size
Allegro MicroSystems, Inc. Common Stock's recorded market capitalization is $6,630,320,776.22. It measures the market value of the company's equity, rather than its revenue or cash balance.
Price relative to earnings
ALGM's recorded P/E is 466.89: about $466.89 of share price for each $1 of trailing annual earnings per share. Compare that multiple with earnings growth and companies in the same business.
Price relative to book equity
ALGM's recorded price-to-book ratio is 6.86. That compares its market equity value with recorded book equity. Examine its business and balance sheet to understand why those values differ.
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