SPRO (Spero Therapeutics) EV-to-OCF: 2.75 (As of Aug. 10, 2026)

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SPRO Spero Therapeutics Inc SPRO
69 GF Score
Price $1.27
GF Value $1.05
Valuation Modestly Overvalued
! 4 Warning Signs
View Full Analysis

What is Spero Therapeutics EV-to-OCF?

Spero Therapeutics SPRO -0.79% 69 EV-to-OCF is 2.75 as of Aug. 10, 2026. GuruFocus rates SPRO with a GF Score™ of 69/100 and a GF Value™ of $1.05 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 1,405 Biotechnology companies, Spero Therapeutics ranks worse than 79.22% on this metric.

EV-to-OCF is calculated as enterprise value divided by its cash flow from operations. As of today, Spero Therapeutics's Enterprise Value is $19.88 Mil. Spero Therapeutics's Cash Flow from Operations for the trailing twelve months (TTM) ended in Mar. 2026 was $7.24 Mil. Therefore, Spero Therapeutics's EV-to-OCF for today is 2.75.

The historical rank and industry rank for Spero Therapeutics's EV-to-OCF or its related term are showing as below:

SPRO' s EV-to-OCF Range Over the Past 10 Years
Min: -11.05   Med: -1.69   Max: 15.13
Current: 2.75

During the past 11 years, the highest EV-to-OCF of Spero Therapeutics was 15.13. The lowest was -11.05. And the median was -1.69.

SPRO's EV-to-OCF is ranked worse than
79.22% of 1405 companies
in the Biotechnology industry
Industry Median: -3.45 vs SPRO: 2.75

EV-to-OCF is a valuation multiple that allows analysts and investors to compare stocks, preferably in the same sector or industry. This important multiple is often used in conjunction with, or as an alternative to, the PE Ratio (TTM) to determine the fair market value of a company.

As of today (2026-08-10), Spero Therapeutics's stock price is $1.27. Spero Therapeutics's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 was $0.240. Therefore, Spero Therapeutics's PE Ratio (TTM) for today is 5.29.


Spero Therapeutics  (NAS:SPRO) EV-to-OCF Explanation

EV-to-OCF is a valuation multiple that allows analysts and investors to compare stocks, preferably in the same sector or industry. This important multiple is often used in conjunction with, or as an alternative to, the PE Ratio (TTM) to determine the fair market value of a company.

Spero Therapeutics's PE Ratio (TTM) for today is calculated as:

PE Ratio (TTM)=Share Price (Today)/Earnings per Share (Diluted) (TTM)
=1.27/0.240
=5.29

Spero Therapeutics's share price for today is $1.27.
Spero Therapeutics's Earnings per Share (Diluted) for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $0.240.

* 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.

Enterprise Value is used because it is a more complete measure in reflecting how much an investor pays when buying a company. Cash Flow from Operations is an important financial metric because it represents the cash generated from operating activities at a company's disposal. Companies with a low EV-to-OCF ratio, combined with a strong balance sheet are generally considered as undervalued.


Spero Therapeutics EV-to-OCF Related Terms


Spero Therapeutics EV-to-OCF Historical Data

* Premium members only.

The historical data trend for Spero Therapeutics's EV-to-OCF can be seen below:

* 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.

Spero Therapeutics EV-to-OCF Chart

Spero Therapeutics Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
EV-to-OCF
Get a 7-Day Free Trial Premium Member Only Premium Member Only -5.90 1.51 -0.22 -0.33 -7.45

Spero Therapeutics Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
EV-to-OCF Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.14 -4.19 -2.19 -7.45 11.30

SPRO vs ACRV, BSEM, RNTX: EV-to-OCF Comparison

For the Biotechnology subindustry, Spero Therapeutics's EV-to-OCF, along with its competitors' market caps and EV-to-OCF 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 EV-to-OCF vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Spero Therapeutics's EV-to-OCF distribution charts can be found below:

* The bar in red indicates where Spero Therapeutics's EV-to-OCF falls into.


SPRO
69GF Score
Spero Therapeutics Inc SPRO
EV-to-OCF is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Spero Therapeutics EV-to-OCF Calculation

Spero Therapeutics's EV-to-OCF for today is calculated as:

EV-to-OCF=Enterprise Value (Today)/Cash Flow from Operations (TTM)
=19.880/7.242
=2.75

Spero Therapeutics's current Enterprise Value is $19.88 Mil.
Spero Therapeutics's Cash Flow from Operations for the trailing twelve months (TTM) ended in Mar. 2026 adds up the quarterly data reported by the company within the most recent 12 months, which was $7.24 Mil.

* 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.

Frequently Asked Questions Learn more about EV-to-OCF →
What does a EV-to-OCF of 2.75 mean?
Spero Therapeutics (SPRO) has a EV-to-OCF of 2.75 as of Aug. 10, 2026. According to the industry distribution chart, Spero Therapeutics ranks #1113 out of 1405 companies in the Biotechnology industry, placing it in the top 79.2%.
Is Spero Therapeutics' EV-to-OCF too high?
Spero Therapeutics' current EV-to-OCF is 2.75. Based on the distribution chart, Spero Therapeutics ranks #1113 out of 1405 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Spero Therapeutics has a GF Score™ of 69/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Spero Therapeutics' EV-to-OCF compare to ACRV and BSEM?
According to the Biotechnology industry distribution chart, Spero Therapeutics ranks #1113 out of 1405 companies for EV-to-OCF. This places Spero Therapeutics in the lower half of its industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good EV-to-OCF for a Biotechnology company?
A good EV-to-OCF depends on the Biotechnology industry context. However, EV-to-OCF 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 EV-to-OCF mean?
A high EV-to-OCF can signal that a stock is expensive relative to its fundamentals. Spero Therapeutics's current EV-to-OCF is 2.75. 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 (SPRO) is currently considered Modestly Overvalued. The stock's GF Value™ is $1.05, compared to a current price of $1.27 — trading 21% above its estimated fair value. The current EV-to-OCF is 2.75. Spero Therapeutics' overall GF Score™ is 69/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is EV-to-OCF calculated?
EV-to-OCF is calculated from a company's financial statements. For Spero Therapeutics (SPRO), the current EV-to-OCF is 2.75 as of Aug. 10, 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 (SPRO) Overvalued in 2026?

Based on GuruFocus' analysis, Spero Therapeutics stock appears to be overvalued. The current stock price of $1.27 is trading 21% above its estimated GF Value™ of $1.05. GuruFocus considers Spero Therapeutics to be Modestly Overvalued.

Key valuation signals for SPRO:

  • EV-to-OCF: 2.75
  • GF Value™: $1.05 vs. price of $1.27 (21% above fair value)
  • GF Score™: 69/100 with 4 warning signs

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


Spero Therapeutics Business Description

Other Exchanges 2HA: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.
69GF Score

Get the complete analysis for SPRO

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

$1.27
Price
$1.05
GF Value