stockNASDAQ: SPRO • 28 Days Updates
Spero Therapeutics Inc. (SPRO)
Showing Closing Date Range from Sep 11 to Oct 9, 2026.
Investor Relations:investors.sperotherapeutics.com
Price & Performance Trajectory
Spero Therapeutics Inc.NASDAQ: SPRO
Latest Close
$1.20
28 Days Updates Trajectory
Showing Closing Date Range from Sep 11 to Oct 9, 2026.Loading trajectory chart...
Click metric scorecards below to toggle price, return %, range & volume curvesSPRO session performance
✓ Latest Close USD
$1.20
Latest session close
+$0.07vs period start
Period Return % % GAIN
+6.19%
Net period trajectory
Cumulative ReturnNormalized
High / Low Range SPREAD
$1.44 / $1.1
Period range envelope
$0.34channel spread
Total Volume SHARES
15.99M
Period turnover
Avg: 940.7K/dLiquidity
Historical Session Ledger
Daily open, high, low, and close prices with volume and period returns.
Historical Quotes & Breakdown(17 dates)
| Date | Close (USD) | Return % | High | Low | Volume |
|---|---|---|---|---|---|
| Oct 09, 2026 | $1.20 | +5.26% | $1.21 | $1.13 | 437.6K |
| Oct 08, 2026 | $1.14 | -2.56% | $1.22 | $1.13 | 718.8K |
| Oct 07, 2026 | $1.17 | -1.68% | $1.19 | $1.16 | 230.7K |
| Oct 06, 2026 | $1.19 | +2.59% | $1.21 | $1.18 | 346.8K |
| Oct 05, 2026 | $1.16 | -2.52% | $1.19 | $1.15 | 934.7K |
| Oct 02, 2026 | $1.19 | -5.56% | $1.27 | $1.17 | 906.9K |
| Sep 25, 2026 | $1.23 | -1.60% | $1.29 | $1.21 | 541.8K |
| Sep 24, 2026 | $1.25 | -0.79% | $1.29 | $1.24 | 473.9K |
| Sep 23, 2026 | $1.26 | -7.35% | $1.40 | $1.24 | 1.40M |
| Sep 22, 2026 | $1.36 | +19.30% | $1.44 | $1.28 | 7.76M |
| Sep 21, 2026 | $1.14 | +0.89% | $1.15 | $1.12 | 319.1K |
| Sep 18, 2026 | $1.13 | +0.89% | $1.21 | $1.12 | 501.4K |
| Sep 17, 2026 | $1.12 | +0.90% | $1.14 | $1.11 | 180.1K |
| Sep 16, 2026 | $1.11 | -1.77% | $1.14 | $1.10 | 439.6K |
| Sep 15, 2026 | $1.13 | -0.88% | $1.15 | $1.11 | 224.3K |
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