Goldcorp dropped

Goldcorp dropped a bit today, so, for the first time I actually did what I should be doing. I put in a sell on stop order at 29.15 for Goldcorp and a sell on stop order at $19.71 for Barrick gold.

I just hope I understand 'sell on stop' orders correctly.

If triggered I'll lock in a gain of about 14% on Goldcorp and about 7% on Barrick. That is not too shabby, but I've owned each for about two years, so realistically, that would be 7% a year on Goldcorp and 3.5% a year on Barrick.