To remove a symbol from your Portfolio, first select the Portfolio you want to modify at top of page. Thenscroll to the right of the page where you see an “x” icon. (or if you’ve downloaded the mobile app you can do it there too). Mouse over it and it will tell you it will be removing the symbol. Once you click on it a pop box will also appear asking if you want to confirm deletion. So just click on Ok and it will immediately remove the symbol, your screen will refresh and now you can add a new one in if you want. Screenshot below.