price
SP
NASDAQ · SPRO
Spero Therapeutics, Inc.
Healthcare · Biotechnology
$1.13
Up+$0.01 (+0.89%)
Updated Sep 13, 2026, 10:00 PM
SID Score
2.9/10
Composite research score
Smart Money
—
Institutional and insider signal
- Market cap
- 132.38M
- P/E ratio
- -3.02
- Dividend yield
- 0.00%
- 52-week range
- $1.08 – $3.08
- Volume
- 310.63K
- Avg. volume
- 638.96K
Price performance
SPRO price history
1M range · 19 trading sessions · Daily adjusted prices
SPRO closed at $1.13 after 19 trading sessions, down 5.04% for the selected period.
- Last close
- $1.13
- Period change
- -5.04%
- Period low
- $1.12
- Period high
- $1.23
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Sep 11, 2026 | $1.13 | $1.15 | $1.13 | $1.13 | 310.63K |
| Sep 10, 2026 | $1.18 | $1.18 | $1.12 | $1.12 | 569.29K |
| Sep 9, 2026 | $1.20 | $1.21 | $1.17 | $1.17 | 367.06K |
| Sep 8, 2026 | $1.21 | $1.22 | $1.19 | $1.19 | 348.59K |
| Sep 4, 2026 | $1.20 | $1.22 | $1.185 | $1.21 | 362.98K |
| Sep 3, 2026 | $1.22 | $1.23 | $1.2008 | $1.22 | 203.33K |
| Sep 2, 2026 | $1.20 | $1.2388 | $1.20 | $1.22 | 169.51K |
| Sep 1, 2026 | $1.22 | $1.22 | $1.18 | $1.20 | 385.4K |
| Aug 31, 2026 | $1.20 | $1.23 | $1.20 | $1.22 | 338.47K |
| Aug 28, 2026 | $1.21 | $1.22 | $1.1808 | $1.20 | 312.83K |
| Aug 27, 2026 | $1.22 | $1.23 | $1.18 | $1.21 | 538.49K |
| Aug 26, 2026 | $1.22 | $1.228 | $1.20 | $1.22 | 154.76K |
| Aug 25, 2026 | $1.23 | $1.26 | $1.20 | $1.23 | 645.54K |
| Aug 24, 2026 | $1.22 | $1.24 | $1.20 | $1.215 | 367.27K |
| Aug 21, 2026 | $1.22 | $1.2462 | $1.21 | $1.22 | 359.14K |
| Aug 20, 2026 | $1.22 | $1.27 | $1.20 | $1.21 | 558.77K |
| Aug 19, 2026 | $1.20 | $1.24 | $1.192 | $1.23 | 480.18K |
| Aug 18, 2026 | $1.20 | $1.20 | $1.175 | $1.20 | 477.41K |
| Aug 17, 2026 | $1.21 | $1.24 | $1.19 | $1.19 | 299.01K |
Latest SPRO news
The latest Smart Investors Daily articles mentioning SPRO.
Stock researchCompany · Financials
Loading stock research…