Great risk/reward bottoming play

AMEX:MORT   VanEck Mortgage REIT Income ETF
technically it looks pretty appealing with a classic smiley-bottoming pattern.
it is also fairly cheap (P/E below 5) which reflects a pretty low sentiment.

key to this setup is the r/r, not necessarily if it works out or not.
and off course, with a lofty target, it doesn't hurt to use a trailing stop system