SPRO
Spero Therapeutics
$1.11
−$0.06 (−5.13%)Oct 29, 2026
Key metrics
The numbers that frame SPRO today
- Market cap
- $64.64M
- P/E (TTM)
- 7.9
- EV / FCF
- 0.8
- Gross margin
- 100%
- EV / Sales
- 0.3
- ROIC
- 227.8%
- Div yield
- 0%
- Debt / equity
- 0.0
- 52wk Low
- $1.04
- 52wk High
- $3.08
Growth
Revenue and earnings trend for SPRO
RevenueNet income
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Revenue and earnings trends, margins and the multi-year trajectory - free with an account.
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Free cash flow and financial health
Free cash flowNet debt
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Free cash flow detail, returns on capital and the balance-sheet trend - free with an account.
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Recent insider buying and selling activity
PurchasesSales
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Already a member? Log inFrequently asked questions
Plain-English answers about SPRO
Is Spero Therapeutics a good buy?
Hold. Spero Therapeutics has excellent quality, but poor momentum makes the setup mixed. Growth looks weak. That could put pressure on the long-term business case. We think Spero Therapeutics is selling at a low price.
What is the market capitalization of SPRO?
Spero Therapeutics's market capitalization is $64.64M.
What is the P/E (TTM) ratio for SPRO stock?
Spero Therapeutics's P/E (TTM) ratio is 7.9, based on trailing earnings.
What is the 52-week high for SPRO stock?
The 52-week high for Spero Therapeutics is $3.08. The current close of $1.11 is 64% below that high.
What is the 52-week low for SPRO stock?
The 52-week low for Spero Therapeutics is $1.04. The current close of $1.11 is 6.7% above that low.
Does SPRO stock pay dividends?
Spero Therapeutics does not currently show a dividend per share in the company data.
What is the Debt / Equity ratio for SPRO?
Spero Therapeutics's Debt / Equity ratio is 0.05.