As of November 2026 Spero Therapeutics has a market cap of S$74.98 Million. This makes Spero Therapeutics the world's 10219th 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.
On Nov 14th, 2026 the market cap of Spero Therapeutics was reported to be: