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

4.315 -0.385 (-8.19%)
Delayed Quote Updated: 1:57 PM EDT, Oct 12, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 368,168
Open 4.680
Bid (Size) 4.310 (500)
Ask (Size) 4.320 (400)
Prev. Close 4.700
Today's Range 4.315 - 4.720
52wk Range 4.365 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 87.2% below 52-week high
4.315
4.3752W Low 33.6852W High
1 Week 15.4% 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 $4.32, 87.2% below its 52-week high. Over the past week it ranged between $4.37 and $5.10.

Past 12 Months
-11.0%
-24.7%
-40.7%
-57.8%
-84.1%
-78.5%
1W -$0.53
1M -$1.42
3M -$2.96
6M -$5.92
YTD -$22.75
1Y -$15.76

UPB was -78.5% over the past year, -57.8% over six months, -84.1% year to date, -11.0% in the last week.

12 Months vs Market
UPB
-78.5%
DIA
+12.5%
SPY
+17.3%
QQQ
+23.9%
IWM
+13.8%

Over the past 12 months UPB returned -78.5% versus DIA (Dow) +12.5%, SPY (S&P 500) +17.3%, QQQ (Nasdaq 100) +23.9% and IWM (Russell 2000) +13.8%.

Volume & Liquidity 0.56× 3-mo avg
Today 368,168 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 368,168 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 4.315
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/12/26 01:57 PM ET
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