Below is a link to an SLI chart from another site, it is from the time frame Feb. 1, 2010 - Mar. 19, 2010. This is the similarity to what we have been going through lately with a tight trading range and the computer trading I believe was happening at the same time.
http://www.stockhouse.com/tools/?page=%2FFinancialTools%2Fsn%5Fadvancedcharts%2Easp%3Fsymbol%3DV%2ESLI%26subnav%3Dadvanced
Vepper1