Spero Therapeutics (SPRO)

P/S ratio as of December 2025 (TTM): 4.46

According to Spero Therapeutics's latest financial reports and stock price the company's current price-to-sales ratio (TTM) is 4.93. At the end of 2025 the company had a P/S ratio of 3.63.

P/S ratio history for Spero Therapeutics from 2017 to 2025

PS ratio at the end of each year

Year	P/S ratio	Change
2025	3.63	77%
2024	2.05	154.5%
2023	0.8054	-56.32%
2022	1.84
2021	N/A	-100%
2020	> 1000	13369.5%
2019	16.3	-92.86%
2018	229
2017	N/A

P/S ratio for similar companies or competitors

Company	P/S ratio	P/S ratio differencediff.	Country
Franklin Covey FC	0.8028	-81.99%	🇺🇸 USA
IBM IBM	4.31	-3.35%	🇺🇸 USA
Thomson Reuters TRI	8.06	80.67%	🇨🇦 Canada

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P/S ratio for Spero Therapeutics (SPRO)

P/S ratio as of December 2025 (TTM): 4.46