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

4.170 -0.530 (-11.28%)
Delayed Quote Updated: 4:00 PM EDT, Oct 12, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 848,411
Open 4.680
Bid (Size) 4.000 (1,000)
Ask (Size) 5.080 (1,000)
Prev. Close 4.700
Today's Range 4.120 - 4.720
52wk Range 4.365 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 87.6% below 52-week high
4.170
4.3752W Low 33.6852W High
1 Week 18.2% below 1-week high
4.371W Low 5.101W High

Upstream Bio, Inc. - Common Stock (UPB) traded between $4.37 and $33.68 over the past 52 weeks and last traded at $4.17, 87.6% below its 52-week high. Over the past week it ranged between $4.37 and $5.10.

Past 12 Months
-14.0%
-27.2%
-42.7%
-59.2%
-84.6%
-79.2%
1W -$0.68
1M -$1.56
3M -$3.11
6M -$6.06
YTD -$22.90
1Y -$15.91

UPB was -79.2% over the past year, -59.2% over six months, -84.6% year to date, -14.0% in the last week.

12 Months vs Market
UPB
-79.2%
DIA
+12.4%
SPY
+17.4%
QQQ
+23.9%
IWM
+13.7%

Over the past 12 months UPB returned -79.2% versus DIA (Dow) +12.4%, SPY (S&P 500) +17.4%, QQQ (Nasdaq 100) +23.9% and IWM (Russell 2000) +13.7%.

Volume & Liquidity 1.28× 3-mo avg
Today 848,411 3-mo avg 660.7K
1W
1.4M
1M
799.3K
3M
660.7K
6M
630.9K
YTD
846.9K
1Y
765.1K

UPB most recently traded 848,411 shares against a 3-month average daily volume of 660.7K.

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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 4.170
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/12/26 04:00 PM ET
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