KOSY JSC (STC:KOS) 10-Year Sharpe Ratio: N/A (As of Aug. 18, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

STC:KOS KOSY JSC STC:KOS
81 GF Score
Price ₫35,000.00
GF Value ₫45,982.35
Valuation Modestly Undervalued
! 4 Warning Signs
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What is KOSY JSC 10-Year Sharpe Ratio?

The 10-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past ten years. As of today (2026-08-18), KOSY JSC's 10-Year Sharpe Ratio is Not available.


KOSY JSC  (STC:KOS) 10-Year Sharpe Ratio Explanation

The 10-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past ten years. It is calculated as the annualized result of the average ten-year monthly excess returns divided by its standard deviation in the ten-year period. 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.


KOSY JSC 10-Year Sharpe Ratio Related Terms


KOSY JSC 10-Year Sharpe Ratio Competitor Comparison

For the Real Estate - Development subindustry, KOSY JSC's 10-Year Sharpe Ratio, along with its competitors' market caps and 10-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.


KOSY JSC 10-Year Sharpe Ratio vs Real Estate Industry

For the Real Estate industry and Real Estate sector, KOSY JSC's 10-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where KOSY JSC's 10-Year Sharpe Ratio falls into.


STC:KOS
81GF Score
KOSY JSC STC:KOS
10-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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KOSY JSC 10-Year Sharpe Ratio Calculation

The 10-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset in the last ten years. A stock / portfolio's 10-Year Sharpe Ratio can be calculated by dividing the difference between the ten-year average monthly returns of the investment and the risk-free rate, by the standard deviation of the investment returns over the past ten years.

Is KOSY JSC (STC:KOS) Overvalued in 2026?

Based on GuruFocus' analysis, KOSY JSC stock appears to be undervalued. The current stock price of ₫35,000.00 is trading 23.9% below its estimated GF Value™ of ₫45,982.35. GuruFocus considers KOSY JSC to be Modestly Undervalued.

Key valuation signals for STC:KOS:

  • 10-Year Sharpe Ratio: N/A
  • GF Value™: ₫45,982.35 vs. price of ₫35,000.00 (23.9% below fair value)
  • GF Score™: 81/100 with 4 warning signs

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


KOSY JSC Business Description

Address B6-BT5, My Dinh 2 New Urban Area, Tu Liem Ward, Hanoi, VNM
KOSY JSC operates in the real estate business, including land use rights that are owned, used, or leased, specifically real estate trading, and the wholesale of construction materials and other installation equipment, specifically trading of construction materials. The Company operates through real estate, trading services, and hydroelectric segments, with trading services generating maximum revenue. Its revenue includes income from real estate transfers, construction materials, and asset leasing.
81GF Score

Get the complete analysis for STC:KOS

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

₫35,000.00
Price
₫45,982.35
GF Value