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

3.550 UNCHANGED
Delayed Quote Updated: 4:00 PM EDT, Oct 13, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 61
Open 3.550
Bid (Size) 1.440 (100)
Ask (Size) 4.100 (100)
Prev. Close 3.550
Today's Range 3.550 - 3.550
52wk Range 3.520 - 33.68
Shares Outstanding N/A
Dividend Yield N/A

Performance

52-Week Range 89.5% below 52-week high
3.550
3.5252W Low 33.6852W High
1 Week 25.4% below 1-week high
3.521W Low 4.761W High

Upstream Bio, Inc. - Common Stock (UPB) traded between $3.52 and $33.68 over the past 52 weeks and last traded at $3.55, 89.5% below its 52-week high. Over the past week it ranged between $3.52 and $4.76.

Past 12 Months
-23.0%
-38.9%
-50.3%
-65.7%
-86.9%
-82.3%
1W -$1.06
1M -$2.26
3M -$3.59
6M -$6.79
YTD -$23.52
1Y -$16.53

UPB was -82.3% over the past year, -65.7% over six months, -86.9% year to date, -23.0% in the last week.

12 Months vs Market
UPB
-82.3%
DIA
+12.1%
SPY
+17.3%
QQQ
+23.5%
IWM
+13.2%

Over the past 12 months UPB returned -82.3% versus DIA (Dow) +12.1%, SPY (S&P 500) +17.3%, QQQ (Nasdaq 100) +23.5% and IWM (Russell 2000) +13.2%.

Volume & Liquidity 0.00× 3-mo avg
Today 61 3-mo avg 675.4K
1W
1.4M
1M
825.9K
3M
675.4K
6M
637.5K
YTD
847.9K
1Y
766.5K

UPB most recently traded 61 shares against a 3-month average daily volume of 675.4K.

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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 3.550
When was Upstream Bio, Inc. - Common Stock last traded?
The last trade of Upstream Bio, Inc. - Common Stock was at 10/13/26 04:00 PM ET
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