Is Your Fund Really Meeting Your Expectations? Understanding Jensen's Alpha
Many investors judge a fund only by the returns it generates. But a more important question is: Has the fund generated returns that justify the level of risk it has taken?
This is where Jensen's Alpha becomes a powerful measure.
Jensen's Alpha compares a fund's actual return with the return it was expected to earn based on its market risk (Beta), as explained by the Capital Asset Pricing Model (CAPM).
A Simple Illustration
Suppose your PMS has delivered a return of 18% over a year.
Based on market conditions and the fund's level of risk, CAPM suggests that the fund should have earned 15%.
- Actual Return: 18%
- Expected Return (CAPM): 15%
- Jensen's Alpha: +3%
This means the portfolio manager created an additional 3% return through investment skill, rather than simply by taking more market risk.
On the other hand, if the fund had delivered only 13%, its Jensen's Alpha would be -2%, indicating that the fund underperformed its expected return despite taking the same level of risk.
Why Investors Should Care
A positive Jensen's Alpha suggests that your portfolio manager has added value beyond what the market alone could explain. Over long investment horizons, consistently positive Alpha is often a sign of disciplined research, sound stock selection and effective portfolio management.
The Bottom Line
Returns alone do not tell the complete story. The real question every investor should ask is:
"Is my fund simply riding the market, or is my fund manager genuinely creating value?"
Jensen's Alpha helps answer that question by measuring performance relative to risk, making it one of the most meaningful tools for evaluating whether your investment is truly meeting your expectations.
Check the Jensen Alpha score for your proposed PMS !!