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Upturn stock rating
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Spero Therapeutics Inc (SPRO)

Upturn stock rating
$2.21
Last Close (24-hour delay)
Profit since last BUY-1.78%
upturn advisory
Consider higher Upturn Star rating
BUY since 11 days
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Upturn Stock info Stock price based on last close
*as per simulation
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Upturn Advisory Summary

10/24/2025: SPRO (1-star) has a low Upturn Star Rating. Not recommended to BUY.

Upturn Star Rating

rating

Not Recommended Performance

These Stocks/ETFs, based on Upturn Advisory, consistently fall short of market performance, signaling caution before investing.

Number of Analysts

rating

3 Analysts rated it

Very few follow this stock; limited insights, higher-risk early investing.

1 Year Target Price $4

1 Year Target Price $4

Analysts Price Target For last 52 week
$4 Target price
52w Low $0.51
Current$2.21
52w High $3.22

Analysis of Past Performance

Type Stock
Historic Profit 30.3%
Avg. Invested days 43
Today’s Advisory Consider higher Upturn Star rating
Upturn Star Rating upturn star rating icon
Upturn Advisory Performance Upturn Advisory Performance 4.0
Stock Returns Performance Upturn Returns Performance 3.0
Upturn Profits based on simulation Profits based on simulation
Upturn Profits based on simulation Last Close 10/24/2025

Key Highlights

Company Size Small-Cap Stock
Market Capitalization 124.37M USD
Price to earnings Ratio -
1Y Target Price 4
Price to earnings Ratio -
1Y Target Price 4
Volume (30-day avg) 3
Beta 1.47
52 Weeks Range 0.51 - 3.22
Updated Date 10/25/2025
52 Weeks Range 0.51 - 3.22
Updated Date 10/25/2025
Dividends yield (FY) -
Basic EPS (TTM) -0.98

Analyzing Revenue: Products, Geography and Growth

Revenue by Products

Earnings Date

Report Date -
When -
Estimate -
Actual -

Profitability

Profit Margin -110.35%
Operating Margin (TTM) -16.64%

Management Effectiveness

Return on Assets (TTM) -33.23%
Return on Equity (TTM) -94.59%

Valuation

Trailing PE -
Forward PE -
Enterprise Value 86659706
Price to Sales(TTM) 2.56
Enterprise Value 86659706
Price to Sales(TTM) 2.56
Enterprise Value to Revenue 2.54
Enterprise Value to EBITDA 0.75
Shares Outstanding 56275225
Shares Floating 45855304
Shares Outstanding 56275225
Shares Floating 45855304
Percent Insiders 24.43
Percent Institutions 15.8

ai summary icon Upturn AI SWOT

Spero Therapeutics Inc

stock logo

Company Overview

overview logo History and Background

Spero Therapeutics Inc. was founded in 2013 and is focused on developing novel treatments for multi-drug resistant bacterial infections. Initially named Sparantibiotics, Inc. and focused on anti-infectives, it changed its name to Spero Therapeutics in 2015. It has gone through multiple clinical trial phases and regulatory submissions.

business area logo Core Business Areas

  • Infectious Disease Therapeutics: Spero develops and commercializes antibiotics to treat serious and life-threatening bacterial infections, especially those resistant to multiple drugs. Focus is on oral therapies for outpatient use.

leadership logo Leadership and Structure

Ankit Mahadevia is the CEO. The company has a board of directors and a management team focused on drug development, regulatory affairs, and commercialization.

Top Products and Market Share

overview logo Key Offerings

  • Tebipenem HBr: Tebipenem HBr, an oral carbapenem antibiotic, is Spero's lead product candidate. Designed for complicated urinary tract infections (cUTI), including pyelonephritis, caused by certain gram-negative bacteria. Competitors include injectable antibiotics like meropenem and imipenem/cilastatin, and potentially other oral antibiotics if they gain broader approvals. Spero is seeking partnerships for commercialization.

Market Dynamics

industry overview logo Industry Overview

The pharmaceutical industry, specifically the anti-infectives sector, is characterized by high regulatory hurdles, significant R&D costs, and increasing antibiotic resistance. There's a growing need for new antibiotics to combat resistant bacteria.

Positioning

Spero is a clinical-stage biopharmaceutical company aiming to address unmet needs in the treatment of drug-resistant infections. Their focus on oral therapies provides a potential advantage over intravenous options.

Total Addressable Market (TAM)

The global antibiotics market is substantial, estimated to be in the billions of dollars. Spero is positioned to capture a portion of this market, particularly in the cUTI segment, if Tebipenem HBr receives regulatory approval and achieves commercial success.

Upturn SWOT Analysis

Strengths

  • Novel oral carbapenem antibiotic candidate (Tebipenem HBr)
  • Focus on addressing unmet needs in drug-resistant infections
  • Experienced management team

Weaknesses

  • Reliance on a single lead product candidate
  • History of regulatory setbacks with Tebipenem HBr
  • Limited financial resources compared to larger pharmaceutical companies
  • Requirement for additional capital to fund operations

Opportunities

  • Potential for regulatory approval of Tebipenem HBr
  • Partnerships with larger pharmaceutical companies for commercialization
  • Expansion into other indications for Tebipenem HBr
  • Development of additional anti-infective therapies

Threats

  • Regulatory rejection of Tebipenem HBr
  • Competition from existing and emerging antibiotics
  • Changes in reimbursement policies
  • Clinical trial failures

Competitors and Market Share

competitor logo Key Competitors

  • PFE
  • MRK
  • RDHL

Competitive Landscape

Spero Therapeutics faces competition from established pharmaceutical companies with broader product portfolios and greater financial resources. Their competitive advantage lies in their novel oral carbapenem antibiotic candidate.

Growth Trajectory and Initiatives

Historical Growth: Historical growth has been limited due to the company's stage of development. Growth is dependent on successful clinical trials and regulatory approvals.

Future Projections: Future growth is largely tied to the successful commercialization of Tebipenem HBr. Analyst projections vary widely depending on their assumptions regarding regulatory approval and market penetration.

Recent Initiatives: Recent initiatives include seeking FDA approval for Tebipenem HBr and pursuing partnerships for commercialization. They continue to conduct post-approval studies.

Summary

Spero Therapeutics is a clinical-stage biopharmaceutical company with a focus on anti-infectives. The company's future is heavily reliant on the regulatory approval and commercial success of its lead product candidate, Tebipenem HBr. It must carefully manage its cash burn and secure partnerships to support its operations. Regulatory challenges and competition pose significant risks, and past performance is not necessarily indicative of future results.

Peer Comparison

Sources and Disclaimers

Data Sources:

  • SEC Filings
  • Company Website
  • Analyst Reports

Disclaimers:

The information provided is for informational purposes only and should not be considered investment advice. Investment decisions should be made based on individual circumstances and consultation with a qualified financial advisor. Market share data is approximate and may vary depending on the source and methodology.

Upturn AI Summarization AI Summarization is directionally correct and might not be accurate.

Upturn AI Summarization Summarized information shown could be a few years old and not current.

Upturn AI Summarization Fundamental Rating based on AI could be based on old data.

Upturn AI Summarization AI-generated summaries may have inaccuracies (hallucinations). Please verify the information before taking action.

About Spero Therapeutics Inc

Exchange NASDAQ
Headquaters Cambridge, MA, United States
IPO Launch date 2017-11-02
CEO, CFO, President, Treasurer & Director Ms. Esther P. Rajavelu
Sector Healthcare
Industry Biotechnology
Full time employees 32
Full time employees 32

Spero Therapeutics, Inc., a clinical-stage biopharmaceutical company, focuses on identifying and developing novel treatments for multi-drug resistant (MDR) bacterial infections and rare diseases in the United States. The company's product candidates include Tebipenem HBr (tebipenem pivoxil hydrobromide), an oral carbapenem-class antibiotic to treat complicated urinary tract infections, including pyelonephritis for adult patients, which is in Phase 3 development; and SPR720, a novel product candidate for first-line treatment of nontuberculous mycobacterial (NTM) pulmonary disease. It has license agreement with Meiji Seika Pharma Co., Ltd. to support the development of tebipenem HBr; Everest Medicines to develop, manufacture, and commercialize SPR206 in Greater China, South Korea, and Southeast Asian countries; and Vertex Pharmaceuticals Incorporated for patents relating to the oral prodrug SPR720, as well as SPR719, an active metabolite. Spero Therapeutics, Inc. was founded in 2013 and is headquartered in Cambridge, Massachusetts.