Upstream Bio Inc. (UPB)
Showing Closing Date Range from May 7 to Nov 3, 2026 compared to Nov 7, 2025 to May 6, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:upstreambio.com
Current Period Close
$3.39
May 07, 2026 - Nov 03, 2026
Previous Period Close
$9.19
Nov 07, 2025 - May 06, 2026
Net Comparison Delta
$-5.80 (-63.11%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(122 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Nov 03, 2026 | $3.39 | May 05, 2026 | $9.12 | -62.83% |
| Nov 02, 2026 | $3.35 | May 04, 2026 | $9.31 | -64.02% |
| Oct 30, 2026 | $3.41 | May 01, 2026 | $9.40 | -63.72% |
| Oct 29, 2026 | $3.27 | Apr 30, 2026 | $9.18 | -64.38% |
| Oct 28, 2026 | $2.98 | Apr 29, 2026 | $9.19 | -67.57% |
| Oct 27, 2026 | $2.79 | Apr 28, 2026 | $9.51 | -70.66% |
| Oct 26, 2026 | $2.75 | Apr 27, 2026 | $9.29 | -70.40% |
| Oct 23, 2026 | $2.74 | Apr 24, 2026 | $9.30 | -70.54% |
| Oct 22, 2026 | $2.99 | Apr 23, 2026 | $9.60 | -68.85% |
| Oct 21, 2026 | $2.80 | Apr 22, 2026 | $9.64 | -70.95% |
| Oct 20, 2026 | $2.82 | Apr 21, 2026 | $9.26 | -69.55% |
| Oct 19, 2026 | $2.80 | Apr 20, 2026 | $9.99 | -71.97% |
| Oct 16, 2026 | $2.76 | Apr 17, 2026 | $9.99 | -72.37% |
| Oct 15, 2026 | $3.37 | Apr 16, 2026 | $10.10 | -66.63% |
| Oct 14, 2026 | $3.42 | Apr 15, 2026 | $9.88 | -65.38% |
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