Returns earned from investing in any asset class or product
can be looked at in two ways—absolute and relative returns
What is a benchmark?
A benchmark is a performance standard against which the
returns from a security, mutual fund or portfolio manager can be assessed. For
example, mutual fund products are required to showcase performance versus a
suitable benchmark; a diversified equity fund uses a broad index such as BSE
500 or S&P CNX 500 as a benchmark. In fixed income, an income fund uses
Crisil Composite Bond Fund index as a benchmark.
Why is a benchmark important?
Returns earned from investing in any asset class or product
can be looked at in two ways—absolute and relative returns. Absolute returns
are simply a return objective. This is like a minimum rate of return identified
by an investor and their adviser. It is easy to understand and monitor, but not
enough to evaluate performance.
As an investor you must also know how the asset class has
performed and how other products within that asset class have performed. That’s
why the need for a benchmark. So if your fund has given a 15% return over five
years, but the benchmark to which it belongs has given 25% over the same period
and the category average is also around that number, then you know your fund
has underperformed and it’s better to exit.
Which benchmark is appropriate?
To be able to make a correct decision, ensure that you use
the appropriate benchmark. A benchmark should ideally be in line with the
risk-return profile of the product you invest in. For example, if you invest in
a large-cap fund, the performance benchmark should ideally be a large-cap index
such as S&P Nifty or BSE
Sensex. Crisil Liquid Fund index can be an appropriate benchmark for
liquid and ultra short-term funds, which have a portfolio of certificates of
deposit and commercial papers.
Compare performance only against a benchmark that is
investible. This means you can’t compare the performance of listed bonds with
returns offered on unlisted bonds even if you own both types of securities.
Also, the benchmark should have precise and published (for investors to see)
guidelines and rules. Given these, you will know the methodology of adding and
deleting holdings form a benchmark and you will have historical values and
holdings available for performance comparison.
Can you create a benchmark?
Where a suitable benchmark is not available, you can create
your own benchmark. For example, for a fund investing in Chinese and Indian
stock markets, you can take representative indices (a Chinese equity index and
an Indian equity index) and combine them by taking proportionate investment
weightage. Similarly, you can create other benchmarks based on the asset class
you are investing in and your overall portfolio allocation.
Whichever way you do it, it is essentially to compare
returns from an asset or a product with peers to understand whether it is under
performing or outperforming.
Source: http://www.livemint.com/2011/11/28213737/Did-You-Know--Returns-must-be.html?h=B