You own 12 different funds, so your portfolio must be diversified, right? Not necessarily. Twelve fund names can create an impressive-looking list while many of those funds quietly own the same companies, sectors, or even the same underlying investments.
That distinction matters because diversification does not come from counting funds like baseball cards. It comes from spreading investments across different assets and exposures so one market segment does not control the fate of the entire portfolio. The SEC specifically warns that investors can hold several mutual funds or ETFs and still lack the diversification they want if the funds share major holdings.
