Spero Therapeutics, Inc.
SPRONASDAQHealthcareBiotechnology
As of Oct 23, 2026 close
- Market cap
- $64.35M
- P/E (TTM)
- 8.72
- Forward P/E
- -
- Dividend yield
- -
- 52-week range
- $1.08$3.08
- Volume (live)
- -
- Avg. volume (3M)
- 722.32K
Spero Therapeutics (SPRO) Stock Price & Financial Analysis
Spero Therapeutics Stock Price Chart
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Financial Metrics & Key Statistics
Fundamental metrics, valuation ratios, and profitability indicators
| Day's Range | $1.10 - $1.13 |
|---|---|
| 52-Week High | $3.08 |
| 52-Week Low | $1.08 |
| Open | $1.13 |
| Volume (last close) | 316.55K |
| Average Volume (3M) | 722.32K |
| Revenue (TTM) | 42.96M |
|---|---|
| Net Income (TTM) | 7.38M |
| Free Cash Flow (TTM) | 19.58M |
| EPS (TTM) | $0.13 |
| Profit Margin | 17.18% |
| Operating Margin | 15.39% |
| Return on Equity (ROE) | 16.70% |
| Debt to Equity | 0.05 |
| Annual Dividend | $0.00 |
|---|---|
| Dividend Yield | 0.00% |
| Payout Ratio | 0.00% |
| Market Cap | 64.35M |
|---|---|
| Shares Outstanding | 57.97M |
| P/E Ratio (TTM) | 8.72 |
| Price to Sales (P/S) | 1.50 |
| Price to Book (P/B) | 1.46 |
| EV/EBITDA | 2.41 |
| 50-Day MA | $1.19 |
|---|---|
| 200-Day MA | $2.04 |
| 1-Year Change | −48.64% |
Source: Market prices and company fundamentals. Data as of Oct 23, 2026. Data sources and methodology
Spero Therapeutics at a Glance
As of the Oct 23, 2026 close, Spero Therapeutics (SPRO) has a market capitalization of $64.35M. The stock trades at 8.7× trailing earnings and 1.5× sales. Over the trailing twelve months it earned $7.38M on revenue of $42.96M (a 17.2% profit margin) and generated $19.58M of free cash flow. Revenue fell 3.4% year over year.
As of its latest reported balance sheet, it holds $50.77M in cash and securities against $2.04M of debt, a net cash position of $48.73M.
Spero Therapeutics does not currently pay a dividend.
The share price is down 48.6% over the past year. At $1.11 (the Oct 23, 2026 close) it sits near the bottom of its 52-week range of $1.08 to $3.08, below its 200-day moving average of $2.04.
Frequently Asked Questions About Spero Therapeutics
What is the current stock price for SPRO?
As of the Oct 23, 2026 close, SPRO stock trades at $1.11. The 52-week range is $1.08–$3.08, with a day range of $1.10–$1.13.
What is the P/E ratio for SPRO?
As of the Oct 23, 2026 close, Spero Therapeutics's trailing twelve-month (TTM) P/E ratio is 8.7, meaning investors pay $8.7 for every $1 of annual earnings. Spero Therapeutics operates in the Healthcare sector.
Does SPRO pay dividends?
Spero Therapeutics does not currently pay a regular dividend. The company retains its earnings to reinvest in the business. Check the Dividends tab for historical dividend information.
What do analysts recommend for SPRO?
Analyst ratings and recommendations for SPRO are displayed in the Analyst Consensus section, including buy/hold/sell distribution and 12-month price targets.
What is the market cap of SPRO?
As of the Oct 23, 2026 close, Spero Therapeutics's market capitalization is $64.3M, classifying it as a micro-cap company. Spero Therapeutics operates in the Healthcare sector within the Biotechnology industry.