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NASDAQ:SPRO

Spero Therapeutics (SPRO) Stock Price, News & Analysis

Spero Therapeutics logo
$2.82 -0.16 (-5.37%)
Closing price 04:00 PM Eastern
Extended Trading
$2.83 +0.01 (+0.39%)
As of 07:43 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

About Spero Therapeutics Stock (NASDAQ:SPRO)

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Key Stats

Today's Range
$2.76
$3.00
50-Day Range
$2.24
$2.98
52-Week Range
$1.80
$3.22
Volume
752,976 shs
Average Volume
768,992 shs
Market Capitalization
$163.28 million
P/E Ratio
11.75
Dividend Yield
N/A
Price Target
N/A
Consensus Rating
Reduce

Company Overview

Spero Therapeutics Stock Analysis - MarketRank™

See Top-Rated MarketRank™ Stocks
22nd Percentile Overall Score

SPRO MarketRank™: 

Spero Therapeutics scored higher than 22% of companies evaluated by MarketBeat, and ranked 735th out of 865 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

  • Consensus Rating

    Spero Therapeutics has received a consensus rating of Reduce. The company's average rating score is 1.50, and is based on no strong buy ratings, no buy ratings, 1 hold rating, and 1 sell rating.

  • Amount of Analyst Coverage

    Spero Therapeutics has only been the subject of 1 research reports in the past 90 days.

  • Read more about Spero Therapeutics' stock forecast and price target.
  • Price to Earnings Ratio vs. the Market

    The P/E ratio of Spero Therapeutics is 11.75, which means that it is trading at a less expensive P/E ratio than the market average P/E ratio of about 38.73.

  • Price to Earnings Ratio vs. Sector

    The P/E ratio of Spero Therapeutics is 11.75, which means that it is trading at a less expensive P/E ratio than the Medical sector average P/E ratio of about 23.77.

  • Price to Book Value per Share Ratio

    Spero Therapeutics has a P/B Ratio of 2.69. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities.

  • Read more about Spero Therapeutics' valuation and earnings.
  • Percentage of Shares Shorted

    3.01% of the float of Spero Therapeutics has been sold short.
  • Short Interest Ratio / Days to Cover

    Spero Therapeutics has a short interest ratio ("days to cover") of 2.61, which is generally considered an acceptable ratio of short interest to trading volume.
  • Change versus previous month

    Short interest in Spero Therapeutics has recently increased by 39.64%, indicating that investor sentiment is decreasing significantly.
  • Dividend Yield

    Spero Therapeutics does not currently pay a dividend.

  • Dividend Growth

    Spero Therapeutics does not have a long track record of dividend growth.

  • Dividend Coverage

    The dividend payout ratio of Spero Therapeutics is 25.00%. This payout ratio is at a healthy, sustainable level, below 75%.

  • Read more about Spero Therapeutics' dividend.
  • Search Interest

    4 people have searched for SPRO on MarketBeat in the last 30 days.
  • MarketBeat Follows

    3 people have added Spero Therapeutics to their MarketBeat watchlist in the last 30 days.
  • Insider Buying vs. Insider Selling

    In the past three months, Spero Therapeutics insiders have sold more of their company's stock than they have bought. Specifically, they have bought $0.00 in company stock and sold $63,352.00 in company stock.

  • Percentage Held by Insiders

    2.90% of the stock of Spero Therapeutics is held by insiders.

  • Percentage Held by Institutions

    25.60% of the stock of Spero Therapeutics is held by institutions.

  • Read more about Spero Therapeutics' insider trading history.
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SPRO Stock News Headlines

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SPRO Stock Analysis - Frequently Asked Questions

Spero Therapeutics' stock was trading at $2.33 at the beginning of 2026. Since then, SPRO stock has increased by 21.0% and is now trading at $2.82.

Spero Therapeutics, Inc. (NASDAQ:SPRO) issued its earnings results on Wednesday, May, 13th. The company reported ($0.13) EPS for the quarter, topping the consensus estimate of ($0.18) by $0.05. The company had revenue of $0.26 million for the quarter, compared to analyst estimates of $0.26 million. Spero Therapeutics had a trailing twelve-month return on equity of 35.58% and a net margin of 24.90%.

Spero Therapeutics (SPRO) raised $82 million in an initial public offering on Thursday, November 2nd 2017. The company issued 5,500,000 shares at a price of $14.00-$16.00 per share. BofA Merrill Lynch, Cowen and Stifel acted as the underwriters for the IPO and Oppenheimer & Co. was co-manager.

Top institutional investors of Spero Therapeutics include Renaissance Technologies LLC (2.05%), Anson Funds Management LP (0.73%) and OMERS ADMINISTRATION Corp (0.07%). Insiders that own company stock include Sath Shukla, Esther Rajavelu, Ankit Mahadevia, Kamal Hamed and Timothy Keutzer.
View institutional ownership trends
.

Shares of SPRO stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services.

Based on aggregate information from My MarketBeat watchlists, some other companies that Spero Therapeutics investors own include Invesco QQQ (QQQ), SPDR S&P 500 ETF Trust (SPY), SPDR Dow Jones Industrial Average ETF Trust (DIA), Meta Platforms (META), NVIDIA (NVDA), Editas Medicine (EDIT) and Advanced Micro Devices (AMD).

Company Calendar

Last Earnings
5/13/2026
Today
6/05/2026
Next Earnings (Estimated)
8/11/2026
Fiscal Year End
12/31/2026

Industry, Sector and Symbol

Stock Exchange
NASDAQ
Sector
Medical
Industry
MED - BIOMED/GENE
Sub-Industry
Pharmaceutical Products
Current Symbol
NASDAQ:SPRO
CIK
1701108
Fax
N/A
Employees
150
Year Founded
2013

Profitability

EPS (Trailing Twelve Months)
$0.24
Trailing P/E Ratio
11.75
Forward P/E Ratio
N/A
P/E Growth
N/A
Net Income
$8.57 million
Net Margins
24.90%
Pretax Margin
25.33%
Return on Equity
35.58%
Return on Assets
24.95%

Debt

Debt-to-Equity Ratio
N/A
Current Ratio
10.50
Quick Ratio
10.50

Sales & Book Value

Annual Sales
$66.80 million
Price / Sales
2.44
Cash Flow
$0.14 per share
Price / Cash Flow
19.59
Book Value
$1.05 per share
Price / Book
2.69

Miscellaneous

Outstanding Shares
57,900,000
Free Float
56,222,000
Market Cap
$163.28 million
Optionable
Optionable
Beta
1.45

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This page (NASDAQ:SPRO) was last updated on 6/5/2026 by MarketBeat.com Staff.
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