GMM Grammy PCL (BKK:GRAMMY-R) 10-Year Sortino Ratio: N/A (As of Aug. 29, 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.

BKK:GRAMMY-R GMM Grammy PCL BKK:GRAMMY-R
60 GF Score
Price ฿3.35
GF Value ฿6.48
Valuation Possible Value Trap
! 4 Warning Signs
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What is GMM Grammy PCL 10-Year Sortino Ratio?

The 10-Year Sortino Ratio measures the additional return that an investor receives per unit of the downside risk over the past ten years. As of today (2026-08-29), GMM Grammy PCL's 10-Year Sortino Ratio is Not available.


GMM Grammy PCL  (BKK:GRAMMY-R) 10-Year Sortino Ratio Explanation

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

Differnt from the Sharpe Ratio that penalizes both upside and downside volatility equally, the Sortino Ratio penalizes only those returns falling below a user-specified target or required rate of return. The expected returns here is set to the risk-free rate as well.


GMM Grammy PCL 10-Year Sortino Ratio Related Terms


BKK:GRAMMY-R vs NFLX, DIS, WBD: 10-Year Sortino Ratio Comparison

For the Entertainment subindustry, GMM Grammy PCL's 10-Year Sortino Ratio, along with its competitors' market caps and 10-Year Sortino 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.


GMM Grammy PCL 10-Year Sortino Ratio vs Media - Diversified Industry

For the Media - Diversified industry and Communication Services sector, GMM Grammy PCL's 10-Year Sortino Ratio distribution charts can be found below:

* The bar in red indicates where GMM Grammy PCL's 10-Year Sortino Ratio falls into.


BKK:GRAMMY-R
60GF Score
GMM Grammy PCL BKK:GRAMMY-R
10-Year Sortino Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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GMM Grammy PCL 10-Year Sortino Ratio Calculation

The 10-Year Sortino Ratio measures the risk-adjusted return of an investment asset or portfolio in the last ten year, focusing specifically on downside risk rather than total risk. A stock / portfolio's 10-Year Sortino 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 downside risks over the past ten year.

A downside risk is a potential loss from the asset or investment. The Downside risk here is measured by the downside deviation, which is the standard deviation of negative returns.

Is GMM Grammy PCL (BKK:GRAMMY-R) Overvalued in 2026?

Based on GuruFocus' analysis, GMM Grammy PCL stock appears to be undervalued. The current stock price of ฿3.35 is trading 48.3% below its estimated GF Value™ of ฿6.48. GuruFocus considers GMM Grammy PCL to be Possible Value Trap.

Key valuation signals for BKK:GRAMMY-R:

  • 10-Year Sortino Ratio: N/A
  • GF Value™: ฿6.48 vs. price of ฿3.35 (48.3% below fair value)
  • GF Score™: 60/100 with 4 warning signs

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


GMM Grammy PCL Business Description

Other Exchanges GRAMMY:Thailand
Address 50 Sukhumvit 21 Road (Asoke), GMM Grammy Place Tower, Klongtoey Nua, Wattana, Bangkok, THA, 10110
GMM Grammy PCL is engaged in various entertainment businesses, including the music business, satellite television business, Digital TV business, movie business, home shopping business, and co-investment in other businesses. The company has three principal reportable segments, i.e., Music segment comprising music business and showbiz, Media segment comprising digital TV business GMM25, Others segment comprising merchandise and other services business.
60GF Score

Get the complete analysis for BKK:GRAMMY-R

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

฿3.35
Price
฿6.48
GF Value