Quote from Bitstream:
omfg; depends what u want to do; brackets are oca or better oco as for definition; if u want to have 2 or more orders eg. buy/sell on same security because u are not immediately sure about da direction u use oca as previous poster described and as soon as one order gets filled the other is gone, otherwise u use brackets if u want to have a protective stp and set a lmt to cash your profits.
read the guide man and experiment with da demo or paper-trader.
