Tsubota Laboratory (TSE:4890) 1-Year Sharpe Ratio: -0.37 (As of Sep. 08, 2026)

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TSE:4890 Tsubota Laboratory Inc TSE:4890
60 GF Score
Price 円293.00
GF Value 円95.16
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Tsubota Laboratory 1-Year Sharpe Ratio?

Tsubota Laboratory TSE:4890 -3.30% 60 1-Year Sharpe Ratio is -0.37 as of Sep. 08, 2026. GuruFocus rates TSE:4890 with a GF Score™ of 60/100 and a GF Value™ of 円95.16 (Significantly Overvalued). The stock has 6 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-09-08), Tsubota Laboratory's 1-Year Sharpe Ratio is -0.37.

Tsubota Laboratory  (TSE:4890) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

Tsubota Laboratory 1-Year Sharpe Ratio Related Terms

TSE:4890 vs ABT, SYK, MDT: 1-Year Sharpe Ratio Comparison

For the Medical Devices subindustry, Tsubota Laboratory's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe Ratio 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.

Tsubota Laboratory 1-Year Sharpe Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Tsubota Laboratory's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where Tsubota Laboratory's 1-Year Sharpe Ratio falls into.


TSE:4890
60GF Score
Tsubota Laboratory Inc TSE:4890
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Tsubota Laboratory 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of -0.37 mean?
Tsubota Laboratory (TSE:4890) has a 1-Year Sharpe Ratio of -0.37 as of Sep. 08, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Tsubota Laboratory and its competitors.
Is Tsubota Laboratory's 1-Year Sharpe Ratio too high?
Tsubota Laboratory's current 1-Year Sharpe Ratio is -0.37. Overall, Tsubota Laboratory has a GF Score™ of 60/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Tsubota Laboratory's 1-Year Sharpe Ratio compare to ABT and SYK?
Tsubota Laboratory's 1-Year Sharpe Ratio of -0.37 can be compared against companies in the Medical Devices & Instruments industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for a Medical Devices & Instruments company?
A good 1-Year Sharpe Ratio depends on the Medical Devices & Instruments industry context. However, 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Tsubota Laboratory and its competitors. Tsubota Laboratory's current 1-Year Sharpe Ratio is -0.37. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tsubota Laboratory stock overvalued right now?
Based on GuruFocus' analysis, Tsubota Laboratory (TSE:4890) is currently considered Significantly Overvalued. The stock's GF Value™ is 円95.16, compared to a current price of 円293.00 — trading 207.9% above its estimated fair value. The current 1-Year Sharpe Ratio is -0.37. Tsubota Laboratory's overall GF Score™ is 60/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Tsubota Laboratory (TSE:4890), the current 1-Year Sharpe Ratio is -0.37 as of Sep. 08, 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 Tsubota Laboratory (TSE:4890) Overvalued in 2026?

Based on GuruFocus' analysis, Tsubota Laboratory stock appears to be overvalued. The current stock price of 円293.00 is trading 207.9% above its estimated GF Value™ of 円95.16. GuruFocus considers Tsubota Laboratory to be Significantly Overvalued.

Key valuation signals for TSE:4890:

  • 1-Year Sharpe Ratio: -0.37
  • GF Value™: 円95.16 vs. price of 円293.00 (207.9% above fair value)
  • GF Score™: 60/100 with 6 warning signs

No single metric tells the full story. See the TSE:4890 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.

Tsubota Laboratory Business Description

Address 34 Shinanomachi, 304 Toshin Shinanomachi-ekimae Building, Shinjuku-ku, Tokyo, JPN, 160-0016
Tsubota Laboratory Inc is engaged in the research and development of pharmaceuticals and medical devices for the treatment of myopia, dry eyes, and presbyopia.
60GF Score

Get the complete analysis for TSE:4890

1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

円293.00
Price
円95.16
GF Value