Long in the Tooth Rails; Chess Moves

I just went short Canadian Pacific, CP, at $184.49 with a cover-stop over $195, playing the recent weakness in the rails and transports.

CP has been a monster, multi-year winner. However, like most other transports and especially rails of late, the rally is showing signs of being long in the tooth. 

On the zoomed-out daily chart, below, for example, note the confirmed "diamond top" (purple lines), followed by the possible bearish sideways continuation pattern.