Spero Therapeutics (SPRO) - Market capitalization

Market cap: NZ$0.22 Billion

As of December 2025 Spero Therapeutics has a market cap of NZ$0.22 Billion. This makes Spero Therapeutics the world's 8979th 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 Spero Therapeutics from 2017 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	NZ$0.22 B	127.98%
2024	NZ$99.56 M	-19.18%
2023	NZ$0.12 B	-12.68%
2022	NZ$0.14 B	-81.42%
2021	NZ$0.75 B	-3.44%
2020	NZ$0.78 B	187%
2019	NZ$0.27 B	73.68%
2018	NZ$0.15 B	-33.64%
2017	NZ$0.23 B

End of Day market cap according to different sources

On Dec 20th, 2025 the market cap of Spero Therapeutics was reported to be:

NZ$0.22 Billion

by Nasdaq

NZ$0.22 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Franklin Covey FC	NZ$0.37 B	63.26%	🇺🇸 USA
IBM IBM	NZ$488.59 B	215,141.93%	🇺🇸 USA
Thomson Reuters TRI	NZ$103.33 B	45,422.22%	🇨🇦 Canada

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 Spero Therapeutics (SPRO)

Market cap: NZ$0.22 Billion