Treynor Ratio:
It
measure the risk adjusted rate of return earned after considering the market
risk. The ratio named after Jack L. Treynor. The ratio considers the systematic
risk. It is same as Sharpe ratio but it consider beta not a standard deviation
to measure the performance of an investment fund. Beta is sensitive to market
conditions. Higher the ratios better the efficiency of an investment portfolio
or fund.
Formula:
Treynor ratio = Rp – Rf
/ β
Where,
Rp = Expected return of a portfolio
Rf = Risk free rate of return
Β = Beta (systematic risk)
Advantages of Treynor
ratio:
·
It helps to measure the performance of a fully
diversified funds in which the unsystematic risk is zero.
·
It helps to rank the investment portfolio.
Disadvantages of
Treynor ratio:
·
It does not consider total risk to measure the
performance of a fund.
·
It is not suitable for undiversified portfolio.
Difference between
Sharpe ratio and Treynor ratio:
·
Sharpe ratio considers standard deviation (total
risk) to measure the efficiency of an investment fund while, Treynor ratio
considers beta which is sensitive to market movements.
·
Sharpe ratio is used when the portfolio is not
fully diversified while the Treynor ratio is used when the portfolio is fully
diversified.
Example:
Calculate the Treynor ratio with the help of given information:
·
The expected return of a Portfolio A is 12.3%
and risk free rate is 4%.
·
The beta is 2.15.
Solution:
Treynor ratio = Rp – Rf / β
= 12.3 – 4 / 2.15
= 3.86%
Example: Find out
which investment asset provides excess return after considering the systematic
risk factor with the help of treynor ratio.
·
The expected return of stock A is 8.6% and risk
free rate of return is 2.6%. The beta of market is 1.18.
·
The expected return of stock L is 9.8% and risk
free rate of return is 1.36%. The beta is -1.32.
·
The expected return of P stock is 10.5% and the
risk free rate is 1.5%. The beta is 0.45%
·
The expected return of stock C is 14.3% and the
risk free rate of return is 3.12%. The beta coefficient is 2.32.
Solution: Treynor
ratio = Rp – Rf / β
Stock A: 8.6 – 2.6 / 1.18 =
5.08%
Stock L: 9.8 – 1.36 / -1.32 = -6.39%
Stock P: 10.5 - 1.5 / 0.45 = 20%
Stock C: 14.3 – 3.12 / 2.32 = 4.81%
The stock P has higher Treynor ratio. So, it is better for the
investment.
Example: Mr. Mehta
wants to invest in any one of the following stock which gives excess return
over risk free rate. He wants to consider all the risk associated with the
stocks. Find out which investment gives better return if the market risk is
high.
Investment
|
Expected return
|
Beta
|
Standard deviation
|
A
|
9.2%
|
0.23
|
29%
|
B
|
9.0%
|
1.56
|
19%
|
C
|
10.6%
|
1.45
|
22%
|
The risk free rate of
all three stocks is 3%.
Solution:
Investment
|
Treynor ratio = Rp – Rf / β
|
Sharpe ratio =Rp – Rf / σ
|
A
|
= 9.2 – 3 / 0.23 = 26.96%
|
= 9.2 – 3 / 29 = 0.21%
|
B
|
= 9.0 – 3 / 1.56 = 3.85%
|
= 9.0 – 3 / 19 = 0.32%
|
C
|
= 10.6 – 3 / 1.45 = 5.24%
|
= 10.6 – 3 / 22 = 0.35%
|
The Treynor ratio shows that stock A is better for
investment and the Sharpe ratio shows that stock C is better for investment.
Mr. Mehta wants
to consider all the risk associated with the stocks. So, the stock C is best
for him. If he consider the market risk only then Stock A is best for him.
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