Like history, markets repeats itself

IBD has been noting the similarities between today's market movement and the 1920's - 1930's. Bill O'Neil also mentioned this on 2/12 on the Tom O'Brien radio show. It's a common practice IBD, O'Neil, and his portfolio managers to look for tandem charts. As an example, O'Neil saw the potential in Crocs by looking at the past winners LA Gear and Rebok. It should be interesting to see is Visa will tandem itself with Mastercard