Archive · 20 Nov 2025
The Diversification Trap: Why Owning Too Many Mutual Funds Can Backfire
Many people think they're diversifying their investments by owning lots of different mutual funds.
But this can actually make their portfolio behave like it's only invested in stocks.
To truly diversify, you should mix different types of investments, like stocks and bonds, that don't move up and down together.
Bonds, often seen as boring, can provide stability and help you stay invested during tough times, which is important for long-term success.
So, instead of asking 'How many funds should I own?', ask 'Which asset classes should I own?'
Many investors over-diversify by owning too many mutual funds, leading to a portfolio that behaves like a crowded, equity-only strategy
True diversification means having a mix of asset classes with different behavior patterns, not just holdings
Debt, often overlooked, plays a crucial role in providing stability, reducing portfolio volatility, and safeguarding capital during certain cycles
Adding meaningful debt (20-40%) to a portfolio can soften drawdowns, reduce volatility, and make rebalancing easier
Real diversification is not about owning more, but owning wisely, with a strong growth engine through equity and a reliable stabilizer in debt
- Who
- Investors
- What
- Over-diversifying by owning too many mutual funds
- When
- When trying to diversify their investment portfolios
- Where
- In their investment portfolios
- Why
- To stay safe and reduce risk
- Average number of equity funds in over-diversified portfolios
- 12
- Average number of stocks in over-diversified portfolios
- 60
- Average contribution of a winning fund to overall portfolio return
- 8-9%
- Average contribution of a winning stock to overall portfolio return
- 1.67%
- Average annual return of equity over the last 20 years
- 12%
- Average annual return of debt over the last 20 years
- 7.3%
- Maximum drawdown of equity over the last 20 years
- -54.7%
- Maximum drawdown of debt over the last 20 years
- -6.3%
