Searching on Radio Boxes

Hi Team – what is the proper way to search on a radio button using the search filter. I have the following (see attchment) search. When I first save the search results, I get the correct search. However, when I hit the recalc (refressh) button. All the transactions within the radio button appears. For example, I only want transactions that have the Exceeded Postion Sizing selected. However, After I click the refresh button. Transaction that have Half Size or full size appears.

thanks,
rocky