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Smart Investors Daily
UP

NASDAQ · UPB

Upstream Bio, Inc.

Healthcare · Biotechnology

$5.31

Down-$0.02 (-0.38%)

Updated Sep 18, 2026, 12:28 PM

SID Score

2.9/10

Composite research score

Smart Money

Institutional and insider signal

Market cap
1.48B
P/E ratio
-14.14
Dividend yield
0.00%
52-week range
$5.27 – $10.67
Volume
533.87K
Avg. volume
437.05K

Price performance

UPB price history

1M range · 0 trading sessions · Daily adjusted prices

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