There are 4 types of gaps I trade, divi gaps, expiry gaps...

There are 4 types of gaps I trade, divi gaps, expiry gaps closing gaps and extreme gaps. What I call extreme gaps is when a cash market opens above or below the prev day high or close. Yesterday the dax open was above the prev day traded high at 12359. When I look at a breakaway I am hoping there are stops there and they get hit. Yesterday it hit a few and came down to fill the highest traded price. You cant see thees gaps on charts because the traded open = the previous day close which is wrong. Markets open up down or flat.