Spero Therapeutics, Inc. (SPRO)
NASDAQ: SPRO · Real-Time Price · USD
1.160
-0.010 (-0.85%)
Oct 8, 2026, 11:01 AM EDT - Market open
Spero Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 8, 2026 | 1.20 | 1.22 | 1.16 | 1.16 | 1.16 | -0.85% | 246,419 |
| Oct 7, 2026 | 1.19 | 1.19 | 1.16 | 1.17 | 1.17 | -1.68% | 230,677 |
| Oct 6, 2026 | 1.21 | 1.24 | 1.18 | 1.19 | 1.19 | 2.59% | 346,790 |
| Oct 5, 2026 | 1.17 | 1.20 | 1.15 | 1.16 | 1.16 | -2.52% | 935,701 |
| Oct 2, 2026 | 1.26 | 1.27 | 1.17 | 1.19 | 1.19 | -5.56% | 906,916 |
| Oct 1, 2026 | 1.22 | 1.31 | 1.20 | 1.26 | 1.26 | 4.13% | 1,039,210 |
| Sep 30, 2026 | 1.21 | 1.29 | 1.20 | 1.21 | 1.21 | 0.83% | 558,213 |
| Sep 29, 2026 | 1.20 | 1.22 | 1.17 | 1.20 | 1.20 | 0.84% | 334,908 |
| Sep 28, 2026 | 1.22 | 1.22 | 1.18 | 1.19 | 1.19 | -3.25% | 393,255 |
| Sep 25, 2026 | 1.27 | 1.29 | 1.21 | 1.23 | 1.23 | -1.60% | 542,770 |
| Sep 24, 2026 | 1.25 | 1.29 | 1.24 | 1.25 | 1.25 | -0.79% | 476,931 |
| Sep 23, 2026 | 1.36 | 1.40 | 1.24 | 1.26 | 1.26 | -7.35% | 1,403,213 |
| Sep 22, 2026 | 1.30 | 1.44 | 1.28 | 1.36 | 1.36 | 19.30% | 7,764,493 |
| Sep 21, 2026 | 1.14 | 1.15 | 1.12 | 1.14 | 1.14 | 0.88% | 319,103 |
| Sep 18, 2026 | 1.12 | 1.21 | 1.12 | 1.13 | 1.13 | 0.89% | 501,371 |
| Sep 17, 2026 | 1.14 | 1.14 | 1.11 | 1.12 | 1.12 | 0.90% | 181,774 |
| Sep 16, 2026 | 1.12 | 1.14 | 1.10 | 1.11 | 1.11 | -1.77% | 439,642 |
| Sep 15, 2026 | 1.14 | 1.15 | 1.11 | 1.13 | 1.13 | -0.88% | 225,284 |
| Sep 14, 2026 | 1.13 | 1.16 | 1.13 | 1.14 | 1.14 | 0.88% | 267,141 |
| Sep 11, 2026 | 1.13 | 1.15 | 1.13 | 1.13 | 1.13 | 0.89% | 310,631 |
| Sep 10, 2026 | 1.18 | 1.18 | 1.12 | 1.12 | 1.12 | -4.27% | 569,285 |
| Sep 9, 2026 | 1.20 | 1.21 | 1.17 | 1.17 | 1.17 | -1.68% | 367,060 |
| Sep 8, 2026 | 1.21 | 1.22 | 1.19 | 1.19 | 1.19 | -1.65% | 348,592 |
| Sep 4, 2026 | 1.20 | 1.22 | 1.19 | 1.21 | 1.21 | -0.82% | 362,983 |
| Sep 3, 2026 | 1.22 | 1.23 | 1.20 | 1.22 | 1.22 | - | 203,326 |
| Sep 2, 2026 | 1.20 | 1.24 | 1.20 | 1.22 | 1.22 | 1.67% | 169,514 |
| Sep 1, 2026 | 1.22 | 1.22 | 1.18 | 1.20 | 1.20 | -1.64% | 385,397 |
| Aug 31, 2026 | 1.20 | 1.23 | 1.20 | 1.22 | 1.22 | 1.67% | 338,465 |
| Aug 28, 2026 | 1.21 | 1.22 | 1.18 | 1.20 | 1.20 | -0.83% | 312,829 |
| Aug 27, 2026 | 1.22 | 1.23 | 1.18 | 1.21 | 1.21 | -0.82% | 538,487 |
| Aug 26, 2026 | 1.22 | 1.23 | 1.20 | 1.22 | 1.22 | -0.81% | 154,762 |
| Aug 25, 2026 | 1.23 | 1.26 | 1.20 | 1.23 | 1.23 | 1.23% | 645,540 |
| Aug 24, 2026 | 1.22 | 1.24 | 1.20 | 1.22 | 1.22 | -0.41% | 367,273 |
| Aug 21, 2026 | 1.22 | 1.25 | 1.21 | 1.22 | 1.22 | 0.83% | 359,140 |
| Aug 20, 2026 | 1.22 | 1.27 | 1.20 | 1.21 | 1.21 | -1.63% | 558,771 |
| Aug 19, 2026 | 1.20 | 1.24 | 1.19 | 1.23 | 1.23 | 2.50% | 480,182 |
| Aug 18, 2026 | 1.20 | 1.20 | 1.18 | 1.20 | 1.20 | 0.84% | 477,408 |
| Aug 17, 2026 | 1.21 | 1.24 | 1.19 | 1.19 | 1.19 | -3.25% | 299,013 |
| Aug 14, 2026 | 1.26 | 1.26 | 1.19 | 1.23 | 1.23 | -0.81% | 744,545 |
| Aug 13, 2026 | 1.26 | 1.30 | 1.21 | 1.24 | 1.24 | 4.20% | 1,292,910 |
| Aug 12, 2026 | 1.24 | 1.25 | 1.19 | 1.19 | 1.19 | -3.25% | 774,554 |
| Aug 11, 2026 | 1.24 | 1.25 | 1.21 | 1.23 | 1.23 | - | 364,060 |
| Aug 10, 2026 | 1.25 | 1.28 | 1.23 | 1.23 | 1.23 | -2.38% | 351,020 |
| Aug 7, 2026 | 1.27 | 1.28 | 1.24 | 1.26 | 1.26 | -0.79% | 459,025 |
| Aug 6, 2026 | 1.26 | 1.28 | 1.23 | 1.27 | 1.27 | 0.79% | 974,681 |
| Aug 5, 2026 | 1.25 | 1.28 | 1.21 | 1.26 | 1.26 | 2.44% | 574,907 |
| Aug 4, 2026 | 1.15 | 1.25 | 1.15 | 1.23 | 1.23 | 6.96% | 752,105 |
| Aug 3, 2026 | 1.19 | 1.22 | 1.13 | 1.15 | 1.15 | -1.71% | 1,373,121 |
| Jul 31, 2026 | 1.20 | 1.21 | 1.17 | 1.17 | 1.17 | -2.50% | 824,576 |
| Jul 30, 2026 | 1.20 | 1.22 | 1.18 | 1.20 | 1.20 | 0.84% | 487,670 |