What is diversification and why does it matter?
Diversification means not putting all your money in one place. Spreading across stocks, sectors and assets lowers the damage any single bad bet can do.
Diversification is the simple idea of spreading your money across many different investments so that no single one can sink you. "Don’t put all your eggs in one basket" — if one stock or sector collapses, the others cushion the blow and your overall portfolio survives.
It works because different assets don’t move together. When IT stocks fall, banks or FMCG might hold up; when stocks struggle, bonds or gold may steady the ship. By combining things that zig and zag at different times, you reduce the wild swings without necessarily giving up much long-term return.
There is such a thing as too much, though — owning 50 random stocks just turns your portfolio into a worse, costlier index fund. Sensible diversification means a manageable mix across sectors and asset types (often easiest via an index fund), not collecting tickers. The goal is to survive being wrong about any one thing.
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Common questions
How many stocks should I own?
There’s no magic number, but most of the benefit of diversification arrives by around 15–25 well-chosen stocks across sectors. Beyond that you mostly add complexity, not safety. An index fund diversifies instantly.
Can I be over-diversified?
Yes. Owning too many holdings dilutes your best ideas and is hard to track, often delivering index-like returns at higher cost. Diversify to survive mistakes, not to own everything.