SPRO
SPERO THERAPETCS (SPRO)
NASDAQ
$1.14-$0.03 (-2.99%)
Price as of Oct 22, 2026 7:30 PM EDT
  • $68.1M
    Market Cap
  • -48.00%
    1-Year Change
  • Biotechnology
    Industry
  • 1 Month
    +2.63%
    Low Price$1.10
    High Price$1.36
  • 3 Months
    -15.22%
    Low Price$1.10
    High Price$1.36
  • 1 Year
    -48.00%
    Low Price$1.10
    High Price$2.98
Date
Open
High
Low
Close
Change (%)
Volume
10/21/2026
1.21
1.22
1.17
1.17
-4.10%
265,711
10/20/2026
1.12
1.24
1.11
1.22
+8.93%
679,284
10/19/2026
1.09
1.13
1.09
1.12
+1.82%
201,364
10/16/2026
1.14
1.17
1.09
1.10
-2.65%
361,279
10/15/2026
1.12
1.14
1.11
1.13
+0.89%
233,830
10/14/2026
1.15
1.17
1.11
1.12
-2.61%
697,610
10/13/2026
1.19
1.20
1.15
1.15
-2.54%
272,493
10/12/2026
1.20
1.22
1.17
1.18
-1.67%
414,257
10/09/2026
1.14
1.21
1.13
1.20
+5.26%
439,175
10/08/2026
1.20
1.22
1.13
1.14
-2.56%
719,788
10/07/2026
1.19
1.19
1.16
1.17
-1.68%
236,670
10/06/2026
1.21
1.24
1.18
1.19
+2.59%
347,570
10/05/2026
1.17
1.20
1.15
1.16
-2.52%
942,724
10/02/2026
1.26
1.27
1.17
1.19
-5.56%
906,916
10/01/2026
1.22
1.31
1.20
1.26
+4.13%
1,039,210
09/30/2026
1.21
1.29
1.20
1.21
+0.83%
558,213
09/29/2026
1.20
1.22
1.17
1.20
+0.84%
334,908
09/28/2026
1.22
1.22
1.18
1.19
-3.25%
393,255
09/25/2026
1.27
1.29
1.21
1.23
-1.60%
542,770
09/24/2026
1.25
1.29
1.24
1.25
-0.79%
476,931
09/23/2026
1.36
1.40
1.24
1.26
-7.35%
1,403,213
09/22/2026
1.30
1.44
1.28
1.36
+19.30%
7,731,297
09/21/2026
1.14
1.15
1.12
1.14
+0.88%
319,103
09/18/2026
1.12
1.21
1.12
1.13
+0.89%
498,104
09/17/2026
1.14
1.14
1.11
1.12
+0.90%
181,774
09/16/2026
1.12
1.14
1.10
1.11
-1.77%
439,642
09/15/2026
1.14
1.15
1.11
1.13
-0.88%
225,284
09/14/2026
1.13
1.16
1.13
1.14
+0.88%
267,141
09/11/2026
1.13
1.15
1.13
1.13
+0.89%
310,631
09/10/2026
1.18
1.18
1.12
1.12
-4.27%
569,285
09/09/2026
1.20
1.21
1.17
1.17
-1.68%
367,060
09/08/2026
1.21
1.22
1.19
1.19
-1.65%
348,590
09/04/2026
1.20
1.22
1.19
1.21
-0.82%
362,983
09/03/2026
1.22
1.23
1.20
1.22
0.00%
203,326
09/02/2026
1.20
1.24
1.20
1.22
+1.67%
169,514
09/01/2026
1.22
1.22
1.18
1.20
-1.64%
385,397
08/31/2026
1.20
1.23
1.20
1.22
+1.67%
337,308
08/28/2026
1.21
1.22
1.18
1.20
-0.83%
312,829
08/27/2026
1.22
1.23
1.18
1.21
-0.82%
538,487
08/26/2026
1.22
1.23
1.20
1.22
-0.81%
154,762
08/25/2026
1.23
1.26
1.20
1.23
+1.23%
645,540
08/24/2026
1.22
1.24
1.20
1.22
-0.41%
367,273
08/21/2026
1.22
1.25
1.21
1.22
+0.83%
359,140
08/20/2026
1.22
1.27
1.20
1.21
-1.63%
558,771
08/19/2026
1.20
1.24
1.19
1.23
+2.50%
475,409
08/18/2026
1.20
1.20
1.18
1.20
+0.84%
477,408
08/17/2026
1.21
1.24
1.19
1.19
-3.25%
299,013
08/14/2026
1.26
1.26
1.19
1.23
-0.81%
744,545
08/13/2026
1.26
1.30
1.21
1.24
+4.20%
1,292,910
08/12/2026
1.24
1.25
1.19
1.19
-3.25%
774,554
08/12/2026
-$0.16 Earnings
08/11/2026
1.24
1.25
1.21
1.23
0.00%
364,060
08/10/2026
1.25
1.28
1.23
1.23
-2.38%
351,020
08/07/2026
1.27
1.28
1.24
1.26
-0.79%
459,025
08/06/2026
1.26
1.28
1.23
1.27
+0.79%
974,681
08/05/2026
1.25
1.28
1.21
1.26
+2.44%
574,907
08/04/2026
1.15
1.25
1.15
1.23
+6.96%
752,105
08/03/2026
1.19
1.22
1.13
1.15
-1.71%
1,373,121
07/31/2026
1.20
1.21
1.17
1.17
-2.50%
824,576
07/30/2026
1.20
1.22
1.18
1.20
+0.84%
487,670
07/29/2026
1.20
1.21
1.16
1.19
-0.42%
1,055,670
07/28/2026
1.18
1.28
1.15
1.20
+1.27%
1,602,358
07/27/2026
1.20
1.23
1.16
1.18
-0.84%
1,346,955
07/24/2026
1.14
1.23
1.08
1.19
+2.59%
11,767,489
07/23/2026
1.28
1.28
1.10
1.16
-8.66%
3,732,613
07/22/2026
1.38
1.41
1.25
1.27
-7.97%
1,990,449
07/21/2026
1.43
1.44
1.37
1.38
-4.17%
2,181,809
07/20/2026
1.57
1.57
1.41
1.44
-8.86%
1,718,822
07/17/2026
1.52
1.64
1.50
1.58
+0.64%
1,249,349
07/16/2026
1.68
1.69
1.52
1.57
-7.65%
2,627,725
07/15/2026
1.71
1.71
1.63
1.70
0.00%
1,424,065
07/14/2026
2.17
2.34
1.67
1.70
-22.02%
10,761,533
07/13/2026
2.11
2.19
2.07
2.18
+3.81%
703,993
07/10/2026
2.12
2.16
2.05
2.10
-0.94%
482,147
07/09/2026
2.19
2.20
2.12
2.12
-2.30%
369,777
07/08/2026
2.14
2.23
2.13
2.17
+0.46%
303,938
07/07/2026
2.16
2.20
2.12
2.16
-1.37%
879,844
07/06/2026
2.17
2.21
2.15
2.19
-0.45%
372,735
07/02/2026
2.23
2.28
2.15
2.20
-0.90%
629,524
07/01/2026
2.21
2.27
2.21
2.22
+0.45%
397,551
06/30/2026
2.26
2.29
2.20
2.21
-2.21%
433,892
06/29/2026
2.26
2.33
2.25
2.26
0.00%
518,253
06/26/2026
2.03
2.33
2.01
2.26
+11.88%
2,222,022
06/25/2026
2.12
2.13
2.02
2.02
-3.81%
1,146,404
06/24/2026
2.15
2.23
2.10
2.10
-2.33%
893,780
06/23/2026
2.16
2.23
2.15
2.15
-2.71%
609,657
06/22/2026
2.28
2.36
2.16
2.21
-3.07%
2,271,190
06/18/2026
2.51
2.51
2.15
2.28
+8.06%
7,195,319
06/17/2026
2.87
3.05
1.95
2.11
-23.83%
11,179,567
06/16/2026
2.94
2.98
2.75
2.77
-4.81%
1,432,159
06/15/2026
2.93
2.97
2.85
2.91
+2.11%
938,025
06/12/2026
2.72
2.85
2.70
2.85
+5.56%
623,936
06/11/2026
2.55
2.76
2.48
2.70
+6.30%
1,156,442
06/10/2026
2.62
2.64
2.51
2.54
-1.17%
762,512
06/09/2026
2.78
2.81
2.52
2.57
-6.20%
1,129,218
06/08/2026
2.84
2.87
2.73
2.74
-2.84%
649,253
06/05/2026
3.00
3.00
2.76
2.82
-5.37%
756,291
06/04/2026
2.79
3.07
2.78
2.98
+6.43%
1,026,065
06/03/2026
2.86
2.87
2.77
2.80
-1.06%
775,490
06/02/2026
2.81
2.87
2.76
2.83
0.00%
606,437