When using the OpLo Column data (Open to Low differences), if you sort in acending or descending order the items that Open=Low of the day are marked with '-'. During ascending sorting, nul value items are not at the top but at the bottom.
You would expect '-' value to be at the top followed by items that are very close to 0. Now, close to zero are the starting items and Null values are at the end.
Thanks for your help.