Portfolio concentration examples
Portfolio concentration risk appears when too much capital depends on one stock, one sector, or one market regime. These examples show how concentration can hide inside apparently diversified portfolios.
Quick definition
Portfolio concentration risk appears when too much capital depends on one stock, one sector, or one market regime. These examples show how concentration can hide inside apparently diversified portfolios.
Questions investors ask
Can concentration exist even with many holdings?
Yes. A portfolio can hold many tickers but still be concentrated if returns are driven by the same few companies or sectors through overlapping funds.
What is a common concentration mistake?
Owning several broad ETFs that all overweight the same mega-cap names. It looks diversified at the ticker level, but effective exposure stays clustered.
How can I reduce concentration risk?
Start by measuring effective exposure across holdings, sectors, and overlapping ETFs. Then rebalance with explicit concentration limits and regular monitoring.
Next step
Use the ETF Overlap Checker, run a free risk snapshot, and review the metrics methodology to connect definitions with your own portfolio.