STRO (Sutro Biopharma) Debt-to-Equity: -0.10 (As of Jun. 2026)

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STRO Sutro Biopharma Inc STRO
45 GF Score
Price $20.46
GF Value $5.50
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Sutro Biopharma Debt-to-Equity?

Sutro Biopharma STRO -4.16% 45 Debt-to-Equity is -0.10 as of Jun. 2026. GuruFocus rates STRO with a GF Score™ of 45/100 and a GF Value™ of $5.50 (Significantly Overvalued). The stock has 4 warning signs investors should review. Among 965 Biotechnology companies, Sutro Biopharma ranks worse than 103626.84% on this metric.

Sutro Biopharma's Short-Term Debt & Capital Lease Obligation for the quarter that ended in Jun. 2026 was $6.66 Mil. Sutro Biopharma's Long-Term Debt & Capital Lease Obligation for the quarter that ended in Jun. 2026 was $4.12 Mil. Sutro Biopharma's Total Stockholders Equity for the quarter that ended in Jun. 2026 was $-103.32 Mil. Sutro Biopharma's debt to equity for the quarter that ended in Jun. 2026 was -0.10.

A high debt to equity ratio generally means that a company has been aggressive in financing its growth with debt. This can result in volatile earnings as a result of the additional interest expense.

The historical rank and industry rank for Sutro Biopharma's Debt-to-Equity or its related term are showing as below:

STRO' s Debt-to-Equity Range Over the Past 10 Years
Min: -0.83   Med: 0.11   Max: 0.52
Current: -0.1

During the past 10 years, the highest Debt-to-Equity Ratio of Sutro Biopharma was 0.52. The lowest was -0.83. And the median was 0.11.

STRO's Debt-to-Equity is not ranked
in the Biotechnology industry.
Industry Median: 0.15 vs STRO: -0.10

Sutro Biopharma  (NAS:STRO) Debt-to-Equity Explanation

In the calculation of Debt to Equity, we use the total of Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation divided by Total Stockholders Equity. In some calculations, Total Liabilities is used to for calculation.


Be Aware

Because a company can increase its ROE % by having more financial leverage, it is important to watch the leverage ratio when investing in high ROE % companies.


Sutro Biopharma Debt-to-Equity Related Terms


Sutro Biopharma Debt-to-Equity Historical Data

* Premium members only.

The historical data trend for Sutro Biopharma's Debt-to-Equity 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.

Sutro Biopharma Debt-to-Equity Chart

Sutro Biopharma Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Debt-to-Equity
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.23 0.23 0.23 0.52 -0.12

Sutro Biopharma Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Debt-to-Equity 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 -0.61 -0.20 -0.12 -0.20 -0.10

STRO vs AVIR, IPSC, CCCC: Debt-to-Equity Comparison

For the Biotechnology subindustry, Sutro Biopharma's Debt-to-Equity, along with its competitors' market caps and Debt-to-Equity 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.


Sutro Biopharma Debt-to-Equity vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Sutro Biopharma's Debt-to-Equity distribution charts can be found below:

* The bar in red indicates where Sutro Biopharma's Debt-to-Equity falls into.


STRO
45GF Score
Sutro Biopharma Inc STRO
Debt-to-Equity is just one metric. See GF Score™, valuation, warning signs, and more.
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Sutro Biopharma Debt-to-Equity Calculation

Debt to Equity measures the financial leverage a company has.

Sutro Biopharma's Debt to Equity Ratio for the fiscal year that ended in Dec. 2025 is calculated as

Sutro Biopharma's Debt to Equity Ratio for the quarter that ended in Jun. 2026 is calculated as

* 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 Debt-to-Equity →
What does a Debt-to-Equity of -0.10 mean?
Sutro Biopharma (STRO) has a Debt-to-Equity of -0.10 as of Jun. 2026. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Sutro Biopharma and its competitors. According to the industry distribution chart, Sutro Biopharma ranks #999999 out of 965 companies in the Biotechnology industry.
Is Sutro Biopharma's Debt-to-Equity too high?
Sutro Biopharma's current Debt-to-Equity is -0.10. Based on the distribution chart, Sutro Biopharma ranks #999999 out of 965 companies in the Biotechnology industry, which is in the bottom quartile relative to peers. Overall, Sutro Biopharma has a GF Score™ of 45/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sutro Biopharma's Debt-to-Equity compare to AVIR and IPSC?
According to the Biotechnology industry distribution chart, Sutro Biopharma ranks #999999 out of 965 companies for Debt-to-Equity. This places Sutro Biopharma in the lower half of its industry. The industry median Debt-to-Equity is 0.15. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Debt-to-Equity for a Biotechnology company?
The median Debt-to-Equity among Biotechnology companies is 0.15, based on 965 companies in the industry. Companies in the top quartile (top 25%) have a Debt-to-Equity significantly above this median, while those in the bottom quartile fall well below. However, Debt-to-Equity 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 Debt-to-Equity mean?
A high Debt-to-Equity can signal that a stock is expensive relative to its fundamentals. Debt-to-Equity ratio represents the ratio of total debt to total company equity. View historical data on Sutro Biopharma and its competitors. For the Biotechnology industry, the median Debt-to-Equity is 0.15 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sutro Biopharma's current Debt-to-Equity is -0.10. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sutro Biopharma stock overvalued right now?
Based on GuruFocus' analysis, Sutro Biopharma (STRO) is currently considered Significantly Overvalued. The stock's GF Value™ is $5.50, compared to a current price of $20.46 — trading 272% above its estimated fair value. The current Debt-to-Equity is -0.10. Sutro Biopharma's overall GF Score™ is 45/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Debt-to-Equity calculated?
Debt-to-Equity is calculated from a company's financial statements. For Sutro Biopharma (STRO), the current Debt-to-Equity is -0.10 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 Sutro Biopharma (STRO) Overvalued in 2026?

Based on GuruFocus' analysis, Sutro Biopharma stock appears to be overvalued. The current stock price of $20.46 is trading 272% above its estimated GF Value™ of $5.50. GuruFocus considers Sutro Biopharma to be Significantly Overvalued.

Key valuation signals for STRO:

  • Debt-to-Equity: -0.10
  • GF Value™: $5.50 vs. price of $20.46 (272% above fair value)
  • GF Score™: 45/100 with 4 warning signs

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


Sutro Biopharma Business Description

Other Exchanges S090:Germany
Address 111 Oyster Point Boulevard, South San Francisco, CA, USA, 94080
Sutro Biopharma Inc is a clinical-stage drug discovery, development, and manufacturing company. The company manufactures next-generation protein therapeutics for cancer and autoimmune disorders through its proprietary integrated cell-free protein synthesis platform, XpressCF. Products offered by the company include STRO-001 for patients with multiple myeloma and lymphoma and STRO-002 for the treatment of ovarian and endometrial cancers. Company's wholly-owned product candidate is STRO-004, a single homogeneous ADC directed against tissue factor which are developing for the treatment of solid tumors. The company also pipeline contains STRO-006, STRO-00X, STRO-00Y, STRO-003, VAX24, VAX31, and Others.
45GF Score

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$20.46
Price
$5.50
GF Value