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

1.140 -0.030 (-2.56%)
Delayed Quote Updated: 4:00 PM EDT, Oct 8, 2026 Add to My Watchlist

Price and Volume

Detailed Quote
Volume 719,788
Open 1.200
Bid (Size) 1.140 (6,600)
Ask (Size) 1.250 (1,600)
Prev. Close 1.170
Today's Range 1.130 - 1.220
52wk Range 1.080 - 3.080
Shares Outstanding 52,571,813
Dividend Yield N/A

Performance

52-Week Range 63.0% below 52-week high
1.140
1.0852W Low 3.0852W High
1 Week 10.0% below 1-week high
1.131W Low 1.271W High

Spero Therapeutics, Inc. - Common Stock (SPRO) traded between $1.08 and $3.08 over the past 52 weeks and last traded at $1.14, 63.0% below its 52-week high. Over the past week it ranged between $1.13 and $1.27.

Past 12 Months
-4.2%
-4.2%
-46.2%
-59.0%
-51.5%
-50.0%
1W -$0.05
1M -$0.05
3M -$0.98
6M -$1.64
YTD -$1.21
1Y -$1.14

SPRO was -50.0% over the past year, -59.0% over six months, -51.5% year to date, -4.2% in the last week.

12 Months vs Market
SPRO
-50.0%
DIA
+9.8%
SPY
+15.0%
QQQ
+22.3%
IWM
+12.5%

Over the past 12 months SPRO returned -50.0% versus DIA (Dow) +9.8%, SPY (S&P 500) +15.0%, QQQ (Nasdaq 100) +22.3% and IWM (Russell 2000) +12.5%.

Volume & Liquidity 0.60× 3-mo avg
Today 719,788 3-mo avg 1.2M
1W
630.7K
1M
834.4K
3M
1.2M
6M
1.1M
YTD
831.6K
1Y
787.1K

SPRO most recently traded 719,788 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 1.140
When was Spero Therapeutics, Inc. - Common Stock last traded?
The last trade of Spero Therapeutics, Inc. - Common Stock was at 10/08/26 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 59.93M
How many shares of Spero Therapeutics, Inc. - Common Stock are outstanding?
Spero Therapeutics, Inc. - Common Stock has 60M shares outstanding.
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