RE:RE:DFN unit NAV to Jan 07 = APPROX: $18.16I more or less take the historical averages when you stack the weightings, and it seems to work quite well. Each month i will make adjustments when the NAV is posted , after the 15th and after the monthend. If I am within a few pennies i dont change things much, as there can be options income or losses and also dividends collected.
Most of the time when my estimates are off, it is due to change in cash position, OR some of the holdings are raised higher in the weightings , while others are droppped lower.