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

4.550 -0.060 (-1.30%)
Delayed Quote Updated: 4:00 PM EDT, Oct 8, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 2,857,194
Open 4.530
Bid (Size) 4.530 (2,100)
Ask (Size) 4.540 (19,100)
Prev. Close 4.610
Today's Range 4.365 - 4.650
52wk Range 4.365 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 86.5% below 52-week high
4.550
4.3752W Low 33.6852W High
1 Week 12.7% below 1-week high
4.371W Low 5.211W High

Upstream Bio, Inc. - Common Stock (UPB) traded between $4.37 and $33.68 over the past 52 weeks and last traded at $4.55, 86.5% below its 52-week high. Over the past week it ranged between $4.37 and $5.21.

Past 12 Months
-9.7%
-26.5%
-41.7%
-56.3%
-83.2%
-76.0%
1W -$0.49
1M -$1.64
3M -$3.26
6M -$5.87
YTD -$22.52
1Y -$14.37

UPB was -76.0% over the past year, -56.3% over six months, -83.2% year to date, -9.7% in the last week.

12 Months vs Market
UPB
-76.0%
DIA
+9.8%
SPY
+15.0%
QQQ
+22.3%
IWM
+12.5%

Over the past 12 months UPB returned -76.0% versus DIA (Dow) +9.8%, SPY (S&P 500) +15.0%, QQQ (Nasdaq 100) +22.3% and IWM (Russell 2000) +12.5%.

Volume & Liquidity 4.43× 3-mo avg
Today 2,857,194 3-mo avg 644.7K
1W
1.4M
1M
775.5K
3M
644.7K
6M
628.7K
YTD
845.2K
1Y
759.2K

UPB most recently traded 2,857,194 shares against a 3-month average daily volume of 644.7K.

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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 4.550
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/08/26 04:00 PM ET
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