Quote from jeffm:
By the way, there is an article in this month's Futures magazine that talks specifically about ES vs SPX options, and the benefits of SPAN margin.
Thanks for the tip Jeff.
I'm probably getting increasingly cynical as I get older but I've found that regardless of industry or topic, subscription based magazines are generally behind the times and have little to offer over alternative sources such as the Internet where you can delve much deeper into topics - links and search engines permitting. I'm sure Phil's recent published article is the exception that proves the rule

BTW, if the article you mention is by John F. Summa, the eternal one man ES options evangelist and disseminator of options mythology, I'll give it a miss thank you!
The topic of ES options seems to come up every couple of months and as such, just about every conceivable aspect has been covered in the past right here on your favorite ET:
July 2004: http://www.elitetrader.com/vb/showthread.php?s=&threadid=34970 (vintage Riskarb in this one
)December 2004:
http://www.elitetrader.com/vb/showthread.php?s=&threadid=42664
May 2005:
http://www.elitetrader.com/vb/showthread.php?s=&threadid=49130
August 2005:
http://www.elitetrader.com/vb/showthread.php?s=&threadid=54216
September 2005:
http://www.elitetrader.com/vb/showthread.php?s=&threadid=56186
etc.
I believe Phil was exploring ES options with his Yahoo! group before this thread got started.
Liquidity has steadily improved over the months. Not much excuse left.
MoMoney.