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Spero Therapeutics, Inc. - Common Stock (NQ:SPRO)

1.120 -0.010 (-0.88%)
Delayed Quote Updated: 2:40 PM EDT, Oct 16, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 273,042
Open 1.140
Bid (Size) 1.110 (13,800)
Ask (Size) 1.120 (800)
Prev. Close 1.130
Today's Range 1.110 - 1.170
52wk Range 1.080 - 3.080
Shares Outstanding 52,571,813
Dividend Yield N/A

Performance

52-Week Range 63.6% below 52-week high
1.120
1.0852W Low 3.0852W High
1 Week 8.2% below 1-week high
1.111W Low 1.221W High

Spero Therapeutics, Inc. - Common Stock (SPRO) traded between $1.08 and $3.08 over the past 52 weeks and last traded at $1.12, 63.6% below its 52-week high. Over the past week it ranged between $1.11 and $1.22.

Past 12 Months
-6.7%
-0.9%
-28.7%
-58.2%
-52.3%
-55.0%
1W -$0.08
1M -$0.01
3M -$0.45
6M -$1.56
YTD -$1.23
1Y -$1.37

SPRO was -55.0% over the past year, -58.2% over six months, -52.3% year to date, -6.7% in the last week.

12 Months vs Market
SPRO
-55.0%
DIA
+12.0%
SPY
+14.6%
QQQ
+18.0%
IWM
+8.1%

Over the past 12 months SPRO returned -55.0% versus DIA (Dow) +12.0%, SPY (S&P 500) +14.6%, QQQ (Nasdaq 100) +18.0% and IWM (Russell 2000) +8.1%.

Volume & Liquidity 0.27× 3-mo avg
Today 273,042 3-mo avg 1.0M
1W
411.4K
1M
842.9K
3M
1.0M
6M
1.1M
YTD
821.0K
1Y
782.6K

SPRO most recently traded 273,042 shares against a 3-month average daily volume of 1.0M.

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Frequently Asked Questions

Is Spero Therapeutics, Inc. - Common Stock publicly traded?
Yes, Spero Therapeutics, Inc. - Common Stock is publicly traded.
What exchange does Spero Therapeutics, Inc. - Common Stock trade on?
Spero Therapeutics, Inc. - Common Stock trades on the Nasdaq Stock Market
What is the ticker symbol for Spero Therapeutics, Inc. - Common Stock?
The ticker symbol for Spero Therapeutics, Inc. - Common Stock is SPRO on the Nasdaq Stock Market
What is the current price of Spero Therapeutics, Inc. - Common Stock?
The current price of Spero Therapeutics, Inc. - Common Stock is 1.120
When was Spero Therapeutics, Inc. - Common Stock last traded?
The last trade of Spero Therapeutics, Inc. - Common Stock was at 10/16/26 02:40 PM ET
What is the market capitalization of Spero Therapeutics, Inc. - Common Stock?
The market capitalization of Spero Therapeutics, Inc. - Common Stock is 58.88M
How many shares of Spero Therapeutics, Inc. - Common Stock are outstanding?
Spero Therapeutics, Inc. - Common Stock has 59M shares outstanding.
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