Spero Therapeutics, Inc. (SPRO)
NASDAQ: SPRO · Real-Time Price · USD
1.135
-0.035 (-2.99%)
Oct 29, 2026, 11:14 AM EDT - Market open
Spero Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 29, 2026 | 1.18 | 1.18 | 1.13 | 1.14 | 1.14 | -2.99% | 104,735 |
| Oct 28, 2026 | 1.18 | 1.18 | 1.12 | 1.17 | 1.17 | 2.63% | 338,851 |
| Oct 27, 2026 | 1.08 | 1.14 | 1.04 | 1.14 | 1.14 | 6.54% | 507,845 |
| Oct 26, 2026 | 1.10 | 1.11 | 1.06 | 1.07 | 1.07 | -3.60% | 513,867 |
| Oct 23, 2026 | 1.13 | 1.13 | 1.10 | 1.11 | 1.11 | -1.77% | 316,552 |
| Oct 22, 2026 | 1.16 | 1.17 | 1.13 | 1.13 | 1.13 | -3.42% | 203,272 |
| Oct 21, 2026 | 1.21 | 1.22 | 1.17 | 1.17 | 1.17 | -4.10% | 265,711 |
| Oct 20, 2026 | 1.12 | 1.24 | 1.11 | 1.22 | 1.22 | 8.93% | 679,284 |
| Oct 19, 2026 | 1.09 | 1.13 | 1.09 | 1.12 | 1.12 | 1.82% | 203,031 |
| Oct 16, 2026 | 1.14 | 1.17 | 1.09 | 1.10 | 1.10 | -2.65% | 361,279 |
| Oct 15, 2026 | 1.12 | 1.14 | 1.11 | 1.13 | 1.13 | 0.89% | 233,830 |
| Oct 14, 2026 | 1.15 | 1.17 | 1.11 | 1.12 | 1.12 | -2.61% | 697,610 |
| Oct 13, 2026 | 1.19 | 1.20 | 1.15 | 1.15 | 1.15 | -2.54% | 272,493 |
| Oct 12, 2026 | 1.20 | 1.22 | 1.17 | 1.18 | 1.18 | -1.67% | 414,257 |
| Oct 9, 2026 | 1.14 | 1.21 | 1.13 | 1.20 | 1.20 | 5.26% | 439,175 |
| Oct 8, 2026 | 1.20 | 1.22 | 1.13 | 1.14 | 1.14 | -2.56% | 719,788 |
| Oct 7, 2026 | 1.19 | 1.19 | 1.16 | 1.17 | 1.17 | -1.68% | 236,670 |
| Oct 6, 2026 | 1.21 | 1.24 | 1.18 | 1.19 | 1.19 | 2.59% | 347,570 |
| Oct 5, 2026 | 1.17 | 1.20 | 1.15 | 1.16 | 1.16 | -2.52% | 942,724 |
| 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 |