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

4.700 +0.150 (+3.30%)
Delayed Quote Updated: 4:00 PM EDT, Oct 9, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 1,187,831
Open 4.540
Bid (Size) 4.000 (100)
Ask (Size) 5.080 (1,000)
Prev. Close 4.550
Today's Range 4.510 - 4.760
52wk Range 4.365 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 86.0% below 52-week high
4.700
4.3752W Low 33.6852W High
1 Week 7.8% 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 $4.70, 86.0% below its 52-week high. Over the past week it ranged between $4.37 and $5.10.

Past 12 Months
-3.1%
-18.3%
-35.4%
-54.1%
-82.6%
-76.0%
1W -$0.15
1M -$1.05
3M -$2.58
6M -$5.53
YTD -$22.37
1Y -$14.92

UPB was -76.0% over the past year, -54.1% over six months, -82.6% year to date, -3.1% in the last week.

12 Months vs Market
UPB
-76.0%
DIA
+13.5%
SPY
+19.2%
QQQ
+27.4%
IWM
+17.3%

Over the past 12 months UPB returned -76.0% versus DIA (Dow) +13.5%, SPY (S&P 500) +19.2%, QQQ (Nasdaq 100) +27.4% and IWM (Russell 2000) +17.3%.

Volume & Liquidity 1.80× 3-mo avg
Today 1,187,831 3-mo avg 660.7K
1W
1.4M
1M
788.5K
3M
660.7K
6M
630.9K
YTD
846.9K
1Y
763.1K

UPB most recently traded 1,187,831 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 4.700
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/09/26 04:00 PM ET
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Starting at /week.