Upstream Bio Inc. (UPB)
Showing Closing Date Range from Jul 18 to Oct 16, 2026 compared to Apr 18 to Jul 17, 2026.
Compare Last 3 Months with Previous Period
Investor Relations:upstreambio.com
Current Period Close
$2.76
Jul 18, 2026 - Oct 16, 2026
Previous Period Close
$7.01
Apr 18, 2026 - Jul 17, 2026
Net Comparison Delta
$-4.25 (-60.63%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(61 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 16, 2026 | $2.76 | Jul 16, 2026 | $7.23 | -61.83% |
| Oct 15, 2026 | $3.37 | Jul 15, 2026 | $7.27 | -53.65% |
| Oct 14, 2026 | $3.42 | Jul 14, 2026 | $7.14 | -52.10% |
| Oct 13, 2026 | $3.55 | Jul 13, 2026 | $7.28 | -51.24% |
| Oct 12, 2026 | $4.17 | Jul 10, 2026 | $7.53 | -44.62% |
| Oct 09, 2026 | $4.70 | Jul 09, 2026 | $7.81 | -39.82% |
| Oct 08, 2026 | $4.55 | Jul 08, 2026 | $7.98 | -42.98% |
| Oct 07, 2026 | $4.61 | Jul 07, 2026 | $7.86 | -41.35% |
| Oct 06, 2026 | $4.59 | Jul 06, 2026 | $7.40 | -37.97% |
| Oct 05, 2026 | $4.85 | Jul 02, 2026 | $7.51 | -35.42% |
| Oct 02, 2026 | $5.04 | Jul 01, 2026 | $7.28 | -30.77% |
| Sep 28, 2026 | $5.34 | Jun 30, 2026 | $6.92 | -22.83% |
| Sep 25, 2026 | $5.36 | Jun 29, 2026 | $6.93 | -22.66% |
| Sep 24, 2026 | $5.17 | Jun 26, 2026 | $6.75 | -23.41% |
| Sep 23, 2026 | $5.19 | Jun 25, 2026 | $6.36 | -18.40% |
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