Spero Therapeutics (MEX:SPRO) Profitability Rank: 4 (As of Jun. 2026)

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MEX:SPRO Spero Therapeutics Inc MEX:SPRO
40 GF Score
Price MXN20.74
GF Value MXN13.54
Valuation Significantly Overvalued
! 2 Warning Signs
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What is Spero Therapeutics Profitability Rank?

Spero Therapeutics MEX:SPRO 40 Profitability Rank is 4 as of Jun. 2026. GuruFocus rates MEX:SPRO with a GF Score™ of 40/100 and a GF Value™ of MXN13.54 (Significantly Overvalued). The stock has 2 warning signs investors should review.

Spero Therapeutics has the Profitability Rank of 4.

GuruFocus Profitability Rank ranks how profitable a company is and how likely the company's business will stay that way. It is rated on a scale of 1 to 10 and is based on these factors:

1. Operating Margin %
2. Piotroski F-Score
3. Trend of the Operating Margin % (5-year average). The company with an uptrend profit margin has a higher rank.
4. Consistency of the profitability
5. Predictability Rank

A higher score indicates superior profitability, with companies rated 7 or above considered to have more robust and sustainable profit generation. Conversely, a score of 3 or lower suggests challenges in generating consistent profits.

Spero Therapeutics's Operating Margin % for the quarter that ended in Jun. 2026 was %. As of today, Spero Therapeutics's Piotroski F-Score is 7.


Spero Therapeutics Profitability Rank Related Terms


MEX:SPRO vs : Profitability Rank Comparison

For the Biotechnology subindustry, Spero Therapeutics's Profitability Rank, along with its competitors' market caps and Profitability Rank data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Spero Therapeutics Profitability Rank vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Spero Therapeutics's Profitability Rank distribution charts can be found below:

* The bar in red indicates where Spero Therapeutics's Profitability Rank falls into.


MEX:SPRO
40GF Score
Spero Therapeutics Inc MEX:SPRO
Profitability Rank is just one metric. See GF Score™, valuation, warning signs, and more.
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Spero Therapeutics Profitability Rank Calculation

GuruFocus Profitability Rank ranks how profitable a company is and how likely the company's business will stay that way.

The rank is rated on a scale of 1 to 10. A higher score indicates superior profitability, with companies rated 7 or above considered to have more robust and sustainable profit generation. Conversely, a score of 3 or lower suggests challenges in generating consistent profits.

Spero Therapeutics has the Profitability Rank of 4.

Profitability Rank is not directly related to the Financial Strength. But if a company is consistently profitable, its financial strength will be stronger.

Profitability Rank is based on these factors:

1. Operating Margin %

Operating Margin % - also known as operating income margin, operating profit margin and return on sales (ROS) - is the ratio of Operating Income divided by net sales or Revenue, usually presented in percent.

Spero Therapeutics's Operating Margin % for the quarter that ended in Jun. 2026 is calculated as:

Operating Margin %=Operating Income (Q: Jun. 2026 ) / Revenue (Q: Jun. 2026 )
=-173.199 / 0
= %

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

2. Piotroski F-Score

Good Sign:

Piotroski F-Score is 7, indicates a very healthy situation.

The zones of discrimination were as such:

Good or high score = 8 or 9
Bad or low score = 0 or 1

Spero Therapeutics has an F-score of 7. It is a good or high score, which usually indicates a very healthy situation.

3. Trend of the Operating Margin % (5-year average). The company with an uptrend profit margin has a higher rank.

4. Consistency of the profitability

5. Predictability Rank

Frequently Asked Questions Learn more about Profitability Rank →
What does a Profitability Rank of 4 mean?
Spero Therapeutics (MEX:SPRO) has a Profitability Rank of 4 as of Jun. 2026. Profitability and Growth ranks a company based on its profit margins and earnings growth. View historical data on Spero Therapeutics and its competitors.
Is Spero Therapeutics' Profitability Rank too high?
Spero Therapeutics' current Profitability Rank is 4. Overall, Spero Therapeutics has a GF Score™ of 40/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Spero Therapeutics' Profitability Rank compare to ?
Spero Therapeutics' Profitability Rank of 4 can be compared against companies in the Biotechnology industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Profitability Rank for a Biotechnology company?
A good Profitability Rank depends on the Biotechnology industry context. However, Profitability Rank should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Profitability Rank mean?
A high Profitability Rank can signal that a stock is expensive relative to its fundamentals. Profitability and Growth ranks a company based on its profit margins and earnings growth. View historical data on Spero Therapeutics and its competitors. Spero Therapeutics's current Profitability Rank is 4. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Spero Therapeutics stock overvalued right now?
Based on GuruFocus' analysis, Spero Therapeutics (MEX:SPRO) is currently considered Significantly Overvalued. The stock's GF Value™ is MXN13.54, compared to a current price of MXN20.74 — trading 53.2% above its estimated fair value. The current Profitability Rank is 4. Spero Therapeutics' overall GF Score™ is 40/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Profitability Rank calculated?
Profitability Rank is calculated from a company's financial statements. For Spero Therapeutics (MEX:SPRO), the current Profitability Rank is 4 as of Jun. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Spero Therapeutics (MEX:SPRO) Overvalued in 2026?

Based on GuruFocus' analysis, Spero Therapeutics stock appears to be overvalued. The current stock price of MXN20.74 is trading 53.2% above its estimated GF Value™ of MXN13.54. GuruFocus considers Spero Therapeutics to be Significantly Overvalued.

Key valuation signals for MEX:SPRO:

  • Profitability Rank: 4
  • GF Value™: MXN13.54 vs. price of MXN20.74 (53.2% above fair value)
  • GF Score™: 40/100 with 2 warning signs

No single metric tells the full story. See the MEX:SPRO stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Spero Therapeutics Business Description

Comparable Companies
Other Exchanges SPRO:USA2HA:Germany
Address 675 Massachusetts Avenue, 14th Floor, Cambridge, MA, USA, 02139
Spero Therapeutics Inc is a clinical-stage biopharmaceutical firm. It focuses on identifying, developing, and commercializing novel treatments for MDR (Multi-drug-resistant) bacterial infections and rare diseases. The company's product candidate, tebipenem pivoxil hydrobromide or tebipenem HBr, is designed to be an oral carbapenem-class antibiotic for use in adults to treat MDR Gram-negative infections. It is also developing SPR720, a novel oral antibiotic designed for the treatment of a rare, orphan disease caused by pulmonary non-tuberculous mycobacterial infections, or NTM disease. It is also focused on SPR206, a next-generation polymyxin investigational product candidate being developed as an IV-administered medicine to treat MDR Gram-negative infections in the hospital.
40GF Score

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Profitability Rank is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

MXN20.74
Price
MXN13.54
GF Value