CADCHF has retraced to a 50% retracement line that has held for almost two years, so there's a good probability that this line will once again provide resistance. If the 50% line fails, next potential short entry for me (on a daily time frame) would be at the red 61.8% retracement line.
The not-very-clear pink arrow over to the left shows when these fibs were first drawn, at the start of 2015. The 0%, 61.8% and 50% lines have provided a few good longer-term entry points since then.