Setting sells to maintain gains

[Kaitlyn]

I think it's called a stop-loss, but say I buy 100 shares @ $10. Today it's at $15, but I want to sell it if it drops to $12.5 to maintain a 25% gain.

So would I just enter a Sell order for $12.50 as the limit price, and set the stop limit also to $12.50... and set the order good until "forever"?

So I'd essentially have a pending sell order for each of my holdings?

[slacker]

http://seekingalpha.com/article/2050...se-of-security