I the most recent means the last entered date...
=LOOKUP(9.99999999999999E+307,A:A)
The result was not what I was seeking. I don't think I initially provided enough data.
I am working in the range I6:I15. The formula is in cell I5. I6 has a date in it but I7:I15 do not and are blank. I would like my formula cell to remain blank until cells I6:I15 have dates in them. At that time I would like the formula in cell I5 to return the most recent date in cells I6:I15.
If I15 is supposed to house the most recent date...
=IF(ISNUMBER(I15),I15,"")
Note that this assumes an entry in I15 if and only if the cells above are already filled up.
Otherwise, whichever of the following is appropriate:
=IF(COUNT(I6:I15)=ROWS(I6:I15),MAX(I6:I15),"")
=IF(COUNT(I6:I15)=ROWS(I6:I15),I15,"")