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

3.780 -0.390 (-9.35%)
Delayed Quote Updated: 1:36 PM EDT, Oct 13, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 453,191
Open 4.140
Bid (Size) 3.770 (600)
Ask (Size) 3.790 (300)
Prev. Close 4.170
Today's Range 3.730 - 4.155
52wk Range 4.120 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 88.8% below 52-week high
3.780
4.1252W Low 33.6852W High
1 Week 22.3% 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 $3.78, 88.8% below its 52-week high. Over the past week it ranged between $4.12 and $4.87.

Past 12 Months
-17.6%
-34.9%
-48.1%
-63.0%
-86.0%
-81.2%
1W -$0.81
1M -$2.03
3M -$3.50
6M -$6.45
YTD -$23.29
1Y -$16.30

UPB was -81.2% over the past year, -63.0% over six months, -86.0% year to date, -17.6% in the last week.

12 Months vs Market
UPB
-81.2%
DIA
+12.0%
SPY
+17.2%
QQQ
+23.2%
IWM
+13.1%

Over the past 12 months UPB returned -81.2% versus DIA (Dow) +12.0%, SPY (S&P 500) +17.2%, QQQ (Nasdaq 100) +23.2% and IWM (Russell 2000) +13.1%.

Volume & Liquidity 0.68× 3-mo avg
Today 453,191 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 453,191 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 3.780
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/13/26 01:36 PM ET
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