Here is a good example. Cat failed to break and close above 72, but instead tested and broke lows. Fibs are great at this. In fact we had a nice resistance point ay 68...so if cat failed to break and close above 68, id short. If it closed above, I'd wait for a retrace and go long, or buy small size at the 68 level, and buy more when it fell.
as they say buy dips and sell rallies, short rallies and buy dips.