To calculate the required rate of return for an asset using capital asset pricing model (CAPM), one needs risk free rate, market return and beta.
These inputs can be obtained from Bloomberg Terminal.
Type "CRP" and the following screen will appear. Risk free rate and market return can be obtained here.
The risk free rate and market return fluctuate daily.
In the case of Malaysia, the Malaysia Govt Bonds 10 Year Yield (Bloomberg ticker: MAGY10YR) is used as risk free rate
Market return is the capital weighted average of the internal rate of return for all major index numbers.
To get beta of a stock, select the stock, then enter "beta" at the command line and the beta will appear.