Speculators (Loonie longs) are starting to have a difficult time here to get any more skewed than they already are. (and all for what?!) Also, they are unlikely be able to take too much heat, in what is The Weakest FX (long) positioning in the civilized world, before a spectacular implosion.
This one (title chart) is a severe liquidity issue, at best; The USDCAD Weekly;
The AUDCAD Long is all about plain (insurmountable) capital flows - i.e. common sense;