Currently the filters screen is very unintuitive, every filter option is selected, if you only wanted one or two filters applied you have to deselect them all either by clicking them individually or by clicking clear filters and then reselecting the ones you want. That is a backwards way to do it.
There should be an ALL item (or more accurately "NO FILTERS") button selected by default (similar to my mockup below) and individual filters not selected by default, then you can simply select individual filters, automatically deselcting the ALL item, and the list would filter how you want.
Also, as mentioned in a previous post, separate filter options for Buy and Sell screens.
It would make trading a bit less fiddly and cumbersome IMO.
