US equities |

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

4.375 -0.325 (-6.91%)
Delayed Quote Updated: 1:21 PM EDT, Oct 12, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 263,436
Open 4.680
Bid (Size) 4.370 (100)
Ask (Size) 4.380 (500)
Prev. Close 4.700
Today's Range 4.365 - 4.720
52wk Range 4.365 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

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Performance

52-Week Range 87.0% below 52-week high
4.375
4.3752W Low 33.6852W High
1 Week 14.2% 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 $4.38, 87.0% below its 52-week high. Over the past week it ranged between $4.37 and $5.10.

Past 12 Months
-9.8%
-23.6%
-39.9%
-57.2%
-83.8%
-78.2%
1W -$0.47
1M -$1.36
3M -$2.91
6M -$5.86
YTD -$22.70
1Y -$15.70

UPB was -78.2% over the past year, -57.2% over six months, -83.8% year to date, -9.8% in the last week.

12 Months vs Market
UPB
-78.2%
DIA
+12.4%
SPY
+17.3%
QQQ
+24.0%
IWM
+13.8%

Over the past 12 months UPB returned -78.2% versus DIA (Dow) +12.4%, SPY (S&P 500) +17.3%, QQQ (Nasdaq 100) +24.0% and IWM (Russell 2000) +13.8%.

Volume & Liquidity 0.40× 3-mo avg
Today 263,436 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 263,436 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 4.375
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/12/26 01:21 PM ET