If I pull up the security detail view for a bond fund that I own, and select market value from the pull-down menu, it shows me the cost basis over time, not the market value. And in the My Holdings box in the upper left, it shows a value that is close to the cost basis (but not exactly the same) next to the Market Value label. Another number is shown next to the Cost Basis label, that I don't believe is correct (and doesn't match what's shown on the investment summary page. What is going on here?