MRK...locking in big gains on Half position...

When I set target prices when entering positions I try to stay very disciplined in when to take gains or cut my small losses...today is no different...MRK just nailed my original Price Target of $42.07...therefore to remain disciplined I am taking half my position off at at 12.48% gain....just sold at $42.18

I well watch 2nd half closely...upside targets of $44-46 remain....and a pull-back to $40ish will likely have me putting this recently sold half position back on....

ORIGINAL POST  with chart and link:  http://mychartdiary.blogspot.com/2012/05/mrk.html

FOLLOW-UP POST with chart and link:  http://mychartdiary.blogspot.com/2012/06/mrk-chart-update.html