You can accomplish the same data by using the Return column (rather than Return YTD) and setting the beginning point for return calculations to the beginning of the year (Options, Portfolio Preferences, Show Return Calculation from: ___). Oddly, when I do that, I see the dollar amounts in the Return column rather than the NA in the Return YTD column for the applicable securities, but the column totals for the two columns are the same. That is, Return YTD with NAs "adds" to the same total as the Return column with all dollar amounts. Clearly the column totals are not columnar additions, but are separate computations.