I've been looking at the chart of Autonation and it seems like the stock tends to either have a big move or a big trading range right around or after monthly auto sales are released.
US auto sales are always released at the beginning of each month. Sometimes it's the first day of the month but it's seems usually within 1-3 business days of the first day of the month. One can get an idea by looking at http://www.autoblog.com/category/by-the-numbers/. One can look up sales for most automakers by Googling for [automaker] reports sales [month] [year] e.g. Toyota reports sales june 2012.
Is there a possibly a play here based on price movement but not rising IV?