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

1.165 -0.005 (-0.43%)
Delayed Quote Updated: 10:02 AM EDT, Oct 8, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 189,466
Open 1.200
Bid (Size) 1.160 (13,800)
Ask (Size) 1.170 (1,300)
Prev. Close 1.170
Today's Range 1.160 - 1.220
52wk Range 1.080 - 3.080
Shares Outstanding 52,571,813
Dividend Yield N/A

Performance

52-Week Range 62.2% below 52-week high
1.165
1.0852W Low 3.0852W High
1 Week 11.1% below 1-week high
1.151W Low 1.311W High

Spero Therapeutics, Inc. - Common Stock (SPRO) traded between $1.08 and $3.08 over the past 52 weeks and last traded at $1.17, 62.2% below its 52-week high. Over the past week it ranged between $1.15 and $1.31.

Past 12 Months
-7.5%
-2.1%
-46.3%
-57.2%
-50.4%
-46.1%
1W -$0.09
1M -$0.02
3M -$1.00
6M -$1.56
YTD -$1.19
1Y -$1.00

SPRO was -46.1% over the past year, -57.2% over six months, -50.4% year to date, -7.5% in the last week.

12 Months vs Market
SPRO
-46.1%
DIA
+9.6%
SPY
+15.9%
QQQ
+24.6%
IWM
+13.2%

Over the past 12 months SPRO returned -46.1% versus DIA (Dow) +9.6%, SPY (S&P 500) +15.9%, QQQ (Nasdaq 100) +24.6% and IWM (Russell 2000) +13.2%.

Volume & Liquidity 0.16× 3-mo avg
Today 189,466 3-mo avg 1.2M
1W
694.6K
1M
839.6K
3M
1.2M
6M
1.1M
YTD
832.2K
1Y
787.2K

SPRO most recently traded 189,466 shares against a 3-month average daily volume of 1.2M.

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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 1.165
When was Spero Therapeutics, Inc. - Common Stock last traded?
The last trade of Spero Therapeutics, Inc. - Common Stock was at 10/08/26 10:02 AM ET
What is the market capitalization of Spero Therapeutics, Inc. - Common Stock?
The market capitalization of Spero Therapeutics, Inc. - Common Stock is 61.25M
How many shares of Spero Therapeutics, Inc. - Common Stock are outstanding?
Spero Therapeutics, Inc. - Common Stock has 61M shares outstanding.
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