Alpha and Beta in Mutual Funds Explained with Examples for Smarter Investing

Brokerage Free Team •September 16, 2025 | 4 min read • 9 views

Have you ever wondered if your mutual fund is actually beating the market or just moving along with it? Two powerful measures—Alpha and Beta—help answer this question. These indicators not only reveal how much return your fund is delivering compared to its benchmark but also how much risk you’re taking to achieve it.

For retail investors, understanding Alpha and Beta is essential for choosing the right mutual funds aligned with their goals and risk appetite. Let’s dive deeper.

What Is Alpha in Mutual Funds?

Alpha measures how much a mutual fund has outperformed or underperformed its benchmark index after adjusting for risk.

  • Positive Alpha (+): Fund beat the benchmark.

  • Negative Alpha (–): Fund underperformed.

  • Zero Alpha (0): Fund matched the benchmark.

Example of Alpha

Suppose the Nifty 50 delivered 10% returns over a year. Your mutual fund generated 12% in the same period.

  • Alpha = 12% – 10% = +2
    This means the fund manager delivered an additional 2% return compared to the benchmark.

If the fund only gave 8%, then:

  • Alpha = 8% – 10% = –2 (underperformance).

Real-World Example (2025):

  • HDFC Flexi Cap Fund – Alpha: +1.8 (3-year data) → Indicates it has consistently outperformed Nifty 500.

  • SBI Bluechip Fund – Alpha: –0.4 (3-year data) → Slight underperformance compared to Nifty 100.

👉 Why it matters: Alpha highlights the fund manager’s ability to add value. For active investors, funds with consistent positive Alpha are attractive.

What Is Beta in Mutual Funds?

Beta measures the volatility (risk) of a mutual fund compared to its benchmark index. It shows how sensitive the fund is to market ups and downs.

  • Beta = 1: Moves in line with the benchmark.

  • Beta > 1: More volatile (higher risk, higher potential returns).

  • Beta < 1: Less volatile (lower risk, lower potential returns).

Example of Beta

A fund with Beta of 1.2:

  • If the Nifty rises by 10%, the fund may rise by 12%.

  • If the Nifty falls by 10%, the fund may drop by 12%.

A defensive fund with Beta of 0.7:

  • If the Nifty rises by 10%, the fund may rise by only 7%.

  • But in a downturn, it may fall just 7%.

Real-World Example (2025):

  • Mirae Asset Large Cap Fund – Beta: 0.92 → Less volatile than its benchmark (Nifty 100).

  • ICICI Prudential Technology Fund – Beta: 1.24 → Higher volatility, often moves more sharply than Nifty IT.

👉 Why it matters: Beta helps investors understand whether a fund is suitable for aggressive (high Beta) or conservative (low Beta) investment styles.

Alpha vs. Beta: The Key Differences

Factor Alpha Beta
Definition Out/under-performance vs. benchmark Volatility compared to benchmark
Focus Fund manager’s skill Market-related risk
Ideal Value Consistently positive Depends on investor’s risk profile
Example Fund beats index by +2% Fund 20% more volatile than index

Practical Illustration: Comparing Two Mutual Funds

Fund Alpha Beta Interpretation
Fund A +3 1.3 Strong outperformance, but higher volatility. Suitable for aggressive investors.
Fund B +1 0.8 Mild outperformance, with lower volatility. Suitable for conservative investors.

Investor-Centric Guidance

  • For Aggressive Investors: Look for high Alpha + higher Beta funds to maximize returns, but be prepared for higher fluctuations.

  • For Conservative Investors: Choose funds with modest Alpha and lower Beta for stability and steady growth.

  • For SIP Investors: Focus on consistent Alpha over long periods rather than short-term numbers.

Limitations of Alpha and Beta

  • They are backward-looking (based on past data).

  • Market conditions can change Alpha and Beta significantly.

  • They should not be the only criteria—factors like expense ratio, Sharpe ratio, fund objectives, and diversification also matter.

Conclusion

Alpha and Beta give investors a balanced view of returns and risks in mutual funds.

  • Alpha tells you if the fund manager is beating the benchmark.

  • Beta tells you how much risk or volatility the fund carries compared to the market.

Key Takeaways for Investors:

  • Always analyze Alpha and Beta together, not in isolation.

  • Match Beta with your own risk tolerance.

  • Revisit these metrics regularly, since they evolve with changing markets.

By combining Alpha and Beta with other performance indicators, you can choose mutual funds that align with your financial goals, investment horizon, and risk appetite—ensuring smarter, more confident investment decisions.

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