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Upstream Bio, Inc. - Common Stock (NQ:UPB)

3.815 -0.355 (-8.51%)
Delayed Quote Updated: 11:56 AM EDT, Oct 13, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 224,562
Open 4.140
Bid (Size) 3.810 (600)
Ask (Size) 3.820 (300)
Prev. Close 4.170
Today's Range 3.805 - 4.155
52wk Range 4.120 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 88.7% below 52-week high
3.815
4.1252W Low 33.6852W High
1 Week 21.6% below 1-week high
4.121W Low 4.871W High

Upstream Bio, Inc. - Common Stock (UPB) traded between $4.12 and $33.68 over the past 52 weeks and last traded at $3.81, 88.7% below its 52-week high. Over the past week it ranged between $4.12 and $4.87.

Past 12 Months
-16.9%
-34.3%
-47.6%
-62.7%
-85.9%
-81.0%
1W -$0.77
1M -$1.99
3M -$3.47
6M -$6.42
YTD -$23.25
1Y -$16.26

UPB was -81.0% over the past year, -62.7% over six months, -85.9% year to date, -16.9% in the last week.

12 Months vs Market
UPB
-81.0%
DIA
+12.1%
SPY
+17.1%
QQQ
+23.1%
IWM
+12.9%

Over the past 12 months UPB returned -81.0% versus DIA (Dow) +12.1%, SPY (S&P 500) +17.1%, QQQ (Nasdaq 100) +23.1% and IWM (Russell 2000) +12.9%.

Volume & Liquidity 0.34× 3-mo avg
Today 224,562 3-mo avg 663.6K
1W
1.4M
1M
815.8K
3M
663.6K
6M
632.6K
YTD
846.9K
1Y
765.4K

UPB most recently traded 224,562 shares against a 3-month average daily volume of 663.6K.

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Frequently Asked Questions

Is Upstream Bio, Inc. - Common Stock publicly traded?
Yes, Upstream Bio, Inc. - Common Stock is publicly traded.
What exchange does Upstream Bio, Inc. - Common Stock trade on?
Upstream Bio, Inc. - Common Stock trades on the Nasdaq Stock Market
What is the ticker symbol for Upstream Bio, Inc. - Common Stock?
The ticker symbol for Upstream Bio, Inc. - Common Stock is UPB on the Nasdaq Stock Market
What is the current price of Upstream Bio, Inc. - Common Stock?
The current price of Upstream Bio, Inc. - Common Stock is 3.815
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/13/26 11:56 AM ET
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