Allegro MicroSystems (ALGM) - Market capitalization

Market cap: HK$51.91 Billion

As of September 2026 Allegro MicroSystems has a market cap of HK$51.91 Billion. This makes Allegro MicroSystems the world's 2696th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of Allegro MicroSystems from 2020 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	HK$51.91 B	34.13%
2025	HK$38.70 B	21.56%
2024	HK$31.83 B	-30.03%
2023	HK$45.50 B	1.41%
2022	HK$44.87 B	-16.16%
2021	HK$53.51 B	36.7%
2020	HK$39.15 B

End of Day market cap according to different sources

On Sep 20th, 2026 the market cap of Allegro MicroSystems was reported to be:

HK$49.86 Billion

by Nasdaq

HK$49.86 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Power Integrations POWI	HK$21.70 B	-58.20%	🇺🇸 USA
Photronics PLAB	HK$13.57 B	-73.84%	🇺🇸 USA
PDF Solutions PDFS	HK$15.47 B	-70.19%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of Allegro MicroSystems (ALGM)

Market cap: HK$51.91 Billion