sharpe ratio for haio

Let's try to calculate Sharpe ratio of Haio

The definition of the sharpe ratio is ("Average return over 3 year" - "Risk free rate")/"Stdev over 3 years. so, sharpe ratio is a function of time too

From here we side track a bit
The risk-free rate is used to see if you are being properly compensated for the additional risk you are taking on with the risky asset. Traditionally, the risk-free rate of return is the shortest dated government securities such as MGS in Malaysia. While this type of security will have the least volatility, some would argue that the risk-free security used should match the duration of the investment it is being compared against.

Let's use 3% as the risk free rate.

Year 2007 2008 2009
Adjusted return 122.69% 12.08% 131.99%

Stdev Sharpe Ratio
66.71% 128.79%

The adjusted return is a sum of capital appreciation + dividend + free share over the login price annually

Good sharpe ratio means low in deviation, high in return that gives you the comfortable of the respective investment. This is because we are investor and not trader. we need to have a good certainty rather than gambling

from Haio as example, one can see that if both return and stdev is high sharpe ratio also will be high. There is no typical sharpe ratio value that we can target at. To yield a high sharpe ratio, it must has a high return with low STDEV