Owning eight mutual funds is not diversification

A common portfolio: eight equity mutual funds, chosen at different times from different recommendation lists. It feels diversified. Open the holdings and the same twenty large Indian companies appear in most of them. You own one bet, eight times, with eight expense ratios.

Diversification is about what moves together

The purpose is to hold things that do not all fall at once. Two large-cap funds fall together because they hold the same companies. Adding the second one reduces almost no risk while adding paperwork and making the portfolio harder to judge.

Genuine spread comes from holding assets driven by different forces: equity, debt, real assets such as property or gold, and cash. These respond to different conditions, which is the entire point.

The concentration most Indians actually have

For a large share of Indian households the real concentration is not in the portfolio at all. It is that the family home is the overwhelming majority of net worth, often bought with leverage, in a single city, in a single market.

That is a legitimate choice. It is not a diversified position, and it should be acknowledged when deciding what the rest of the money does. If most of your net worth is one property, the financial portfolio is not the place to take concentrated bets.

There is a second concentration worth naming: if you hold a lot of your employer's stock, your income and a chunk of your savings depend on the same company. That is the one exposure where a bad outcome hits both sides at once.

Decide the split before picking anything

The allocation between equity and debt explains far more of your outcome than which fund you chose within each. It is also the decision people spend the least time on.

Two things set it: when you need the money, and what you will do in a bad year. Money needed within three years has no business in equity, regardless of how attractive the long-run numbers look. Money you will not touch for fifteen years can carry a great deal of it — but only if you will actually leave it alone when it falls 30%, which is a question about you rather than about markets.

Age-based rules are a starting point and a poor rule in isolation. A 30-year-old saving for a house deposit in two years and a 30-year-old saving for retirement should not hold the same allocation.

Where the extra funds should come from

If you want more equity funds, they should add something the others do not: a different market capitalisation, a different geography, a different style. Three or four funds that genuinely differ will cover most of what a retail investor needs. Beyond that you are usually buying the market at a higher cost, and you can buy it more cheaply as an index.

The mutual fund calculator and the investment calculator will show you what a given mix compounds into. What they cannot tell you is whether two funds are actually different, and that is the part worth checking in the holdings.

Rebalance rarely, and on a rule

Left alone, a portfolio drifts towards whatever has done well, which is the opposite of what you want — the allocation becomes most aggressive exactly when the risky asset is most expensive.

Once a year, or when a holding drifts more than a set margin from its target, move it back. Use new contributions to do it where you can, since that avoids both tax and transaction costs. Rebalancing is uncomfortable by design: it means adding to the thing that has disappointed you.

Do not diversify the same thing twice

EPF, PPF and a debt fund are all fixed income. Holding all three is not three-way diversification, it is one asset class in three wrappers with different tax treatments and lock-ins. Count them together when you measure your split, or you will conclude you are balanced when you are heavily tilted towards debt.

Where this fits

Diversification is one of the seven pillars in your Financial Health Score. It is scored on how your money is actually spread, not on how many products you hold, because those two numbers are frequently very different.