Upstream Bio Inc. (UPB)
Showing Closing Date Range from Oct 9 to Oct 16, 2026 compared to Oct 1 to Oct 8, 2026.
Compare Last 7 Days with Previous Period
Investor Relations:upstreambio.com
Current Period Close
$2.76
Oct 09, 2026 - Oct 16, 2026
Previous Period Close
$4.55
Oct 01, 2026 - Oct 08, 2026
Net Comparison Delta
$-1.79 (-39.34%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(6 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 16, 2026 | $2.76 | - | - | - |
| Oct 15, 2026 | $3.37 | Oct 08, 2026 | $4.55 | -25.93% |
| Oct 14, 2026 | $3.42 | Oct 07, 2026 | $4.61 | -25.81% |
| Oct 13, 2026 | $3.55 | Oct 06, 2026 | $4.59 | -22.66% |
| Oct 12, 2026 | $4.17 | Oct 05, 2026 | $4.85 | -14.02% |
| Oct 09, 2026 | $4.70 | Oct 02, 2026 | $5.04 | -6.75% |