I discussed the use of stop loss orders here:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10129355" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=10129355</a><p>and why the average user should never use them.  Today the  NYSE announced that as of the end of February, they will no longer accept stop loss orders as well as GTC(Good Till Cancel) orders.