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

1.100 -0.030 (-2.65%)
Delayed Quote Updated: 4:00 PM EDT, Oct 16, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 361,278
Open 1.140
Bid (Size) 1.090 (5,900)
Ask (Size) 1.180 (1,100)
Prev. Close 1.130
Today's Range 1.090 - 1.170
52wk Range 1.080 - 3.080
Shares Outstanding 52,571,813
Dividend Yield N/A

Performance

52-Week Range 64.3% below 52-week high
1.100
1.0852W Low 3.0852W High
1 Week 9.8% 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 $1.10, 64.3% below its 52-week high. Over the past week it ranged between $1.11 and $1.22.

Past 12 Months
-8.3%
-2.7%
-29.9%
-59.0%
-53.2%
-55.8%
1W -$0.10
1M -$0.03
3M -$0.47
6M -$1.58
YTD -$1.25
1Y -$1.39

SPRO was -55.8% over the past year, -59.0% over six months, -53.2% year to date, -8.3% in the last week.

12 Months vs Market
SPRO
-55.8%
DIA
+12.2%
SPY
+14.7%
QQQ
+17.9%
IWM
+8.0%

Over the past 12 months SPRO returned -55.8% versus DIA (Dow) +12.2%, SPY (S&P 500) +14.7%, QQQ (Nasdaq 100) +17.9% and IWM (Russell 2000) +8.0%.

Volume & Liquidity 0.36× 3-mo avg
Today 361,278 3-mo avg 1.0M
1W
411.4K
1M
842.9K
3M
1.0M
6M
1.1M
YTD
821.0K
1Y
782.5K

SPRO most recently traded 361,278 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 1.100
When was Spero Therapeutics, Inc. - Common Stock last traded?
The last trade of Spero Therapeutics, Inc. - Common Stock was at 10/16/26 04:00 PM ET
What is the market capitalization of Spero Therapeutics, Inc. - Common Stock?
The market capitalization of Spero Therapeutics, Inc. - Common Stock is 57.83M
How many shares of Spero Therapeutics, Inc. - Common Stock are outstanding?
Spero Therapeutics, Inc. - Common Stock has 58M shares outstanding.
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