Offer your thoughts or opinion on the input financial query or topic using your financial background.

Growth of unrealized gains in tax-managed index funds
I don't know that I can answer the question fully, but 2 points. The percent that represent capital gains certainly can't exceed 100. Did you mean 50% but the 500% is a typo?  More important, funds held in retirement accounts have no issue with this, Cap Gains are meaningless within tax deferred accounts. I don't know the ratio of stocks held in these accounts vs outside, just that the 2011 year end total retirement account worth was $17 trillion. (That's 12 zeros) This strikes me as a high ratio, although more numbers digging is in order.