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

4.590 -0.260 (-5.36%)
Delayed Quote Updated: 2:15 PM EDT, Oct 6, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 590,073
Open 4.840
Bid (Size) 4.590 (600)
Ask (Size) 4.600 (300)
Prev. Close 4.850
Today's Range 4.530 - 4.865
52wk Range 4.665 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 86.4% below 52-week high
4.590
4.6752W Low 33.6852W High
1 Week 15.9% below 1-week high
4.671W Low 5.461W High

Upstream Bio, Inc. - Common Stock (UPB) traded between $4.67 and $33.68 over the past 52 weeks and last traded at $4.59, 86.4% below its 52-week high. Over the past week it ranged between $4.67 and $5.46.

Past 12 Months
-11.6%
-25.8%
-38.0%
-52.8%
-83.0%
-75.8%
1W -$0.60
1M -$1.60
3M -$2.81
6M -$5.13
YTD -$22.48
1Y -$14.38

UPB was -75.8% over the past year, -52.8% over six months, -83.0% year to date, -11.6% in the last week.

12 Months vs Market
UPB
-75.8%
DIA
+10.2%
SPY
+16.2%
QQQ
+25.3%
IWM
+14.1%

Over the past 12 months UPB returned -75.8% versus DIA (Dow) +10.2%, SPY (S&P 500) +16.2%, QQQ (Nasdaq 100) +25.3% and IWM (Russell 2000) +14.1%.

Volume & Liquidity 0.99× 3-mo avg
Today 590,073 3-mo avg 598.1K
1W
887.0K
1M
650.4K
3M
598.1K
6M
600.9K
YTD
833.1K
1Y
745.1K

UPB most recently traded 590,073 shares against a 3-month average daily volume of 598.1K.

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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 4.590
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/06/26 02:15 PM ET
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