The 15% Rule: Managing Sectoral Concentration Risk in Energy Mutual Funds

Realise that energy mutual funds primarily invest in energy-related businesses such as:

• Power generation

• Transmission

• Oil and gas

• Renewable energy, and

• Energy infrastructure

Consequently, the performance of these funds depends heavily on how the energy sector performs across different markets and economic cycles. They may generate better potential returns than diversified equity funds when the energy sector is in a “growth phase”. 

However, since they carry a higher “concentration risk”, the NAV of a mutual fund (power sector) can experience relatively greater volatility during periods of:

• Regulatory changes

• Project delays, or

• Sector-specific slowdowns

During such phases, the energy fund's NAV may decline more sharply than diversified equity funds, where investments are spread across multiple sectors. Therefore, the risk-return profile of energy mutual funds is “more aggressive” than diversified equity schemes. 

While they offer the potential for higher returns during favourable sector cycles, investors must be prepared for greater volatility and longer periods of underperformance when the energy sector faces slowdowns.

There is no “universal rule” that determines how much an investor should allocate to energy funds. The ideal exposure depends on factors such as:

• Risk tolerance

• Investment horizon

• Existing portfolio composition, and

• Conviction in the energy sector's long-term growth prospects

However, since energy funds are riskier than diversified equity funds, they are generally viewed as “satellite investments” rather than core portfolio holdings. In this approach:

• Several investors may build the foundation of their portfolio with diversified equity funds and

• Potentially use sectoral funds (say, clean energy mutual funds or renewable energy mutual funds) to take “selective exposure” to specific themes or sectors.

   

While allocation decisions should be based on individual circumstances, many financial advisors generally recommend limiting total exposure to sectoral and thematic funds to around 10-15% of the overall equity portfolio. 

For example,

• Suppose an investor has an equity portfolio worth ₹10 lakh.

• The combined allocation to energy sector funds may be restricted to around ₹1 lakh to ₹1.5 lakh.

• The remaining amount may be invested in diversified equity schemes (as per risk appetite).

The potential advantage? Such a “core-satellite” investment approach maintains portfolio diversification and provides exposure to sector-specific growth opportunities.

Additionally, note that investors with a lower risk appetite may choose a smaller allocation (even less than 10-15%) or avoid sectoral funds altogether.

So, now you know what energy sector mutual funds are, how their risk-return profile differs from diversified equity schemes, and how much exposure you may potentially maintain within your portfolio.

To recap, energy mutual funds are sectoral equity schemes that invest at least 80% of their total assets in equity and equity-related instruments of companies operating across India's energy sector. These funds can deliver better potential returns than diversified equity funds when the energy sector benefits from:

• Favourable government policies

• Rising electricity demand

• Infrastructure spending, or

• Growth in renewable energy

However, the same sector concentration can work against investors during periods of regulatory changes, project delays, or sector-specific slowdowns. In such situations, energy mutual funds may experience greater volatility and sharper NAV declines than diversified equity schemes.

As a result, many investors limit their exposure to sectoral funds to around 10-15% of their equity portfolio. However, the “right” allocation depends on your risk tolerance and investment objectives. Investors who prefer broader diversification may choose a smaller allocation or avoid energy funds altogether.

1. Are energy sector mutual funds riskier than diversified equity funds?

As per general industry understanding, energy mutual funds carry higher risk than diversified equity funds and maintain a relatively aggressive risk-return profile. 

Since they invest at least 80% of their total assets in the “energy” sector, their performance depends heavily on sector-specific business conditions. As a result, they can experience comparatively higher gains during favorable periods but also witness sharper NAV declines when the energy sector faces challenges.

2. What are clean energy mutual funds and renewable energy mutual funds?

As per general market understanding, clean energy and renewable energy are usually considered a part of the wider energy sector. However, some asset management companies (AMCs) may choose to focus specifically on clean and renewable energy businesses and launch dedicated schemes such as:

• Clean energy mutual funds or

• Renewable energy mutual funds

If we talk about their nature, both are thematic equity schemes, just like energy mutual funds.

3. Should I invest in an energy mutual fund through SIP or lump sum?

The “right” choice depends on your personal preference, risk appetite, and investment horizon. If you prefer “gradual” investing and don’t want to time the market, the SIP (Systematic Investment Plan) investment mode may be preferred. 

Whereas, you may go for a lump sum investment when valuations and sector conditions are favourable (determined post-conducting market research), and you want to gain full market exposure on your deployed capital from Day 1.