3 weeks tight pattern is defined as three weekly closes of a stock price each within a 1% close of the previous week. A 3 weeks tight pattern and sometimes it could be 4 weeks depending on the overall market indicates the stock is trading at a tight price range on low volume ideally, this action points to institutional support.
http://wwwjonnywebspider.blogspot.in/2012/03/3-weeks-tight-pattern.html
