Hi All, The question about the origin or the meaning of the 'ES' symbol for the SP500 mini-futures has often been raised. Most posters at ET only managed to produce BS on this. The question has definitely been settled a few days ago by ARogueTrader. For further information on ES without any BS look at (bottom of the page): http://www.elitetrader.com/vb/showthread.php?s=&threadid=28489&perpage=6&pagenumber=66 Hope this helps