When Small Investors Buy, Big Investors Sell
Jul 20th, 2009 | By Steve McDonald | Category: Stock Market InvestingThere is an unofficial rule in the stock business called the “Odd Lot Theory”. It states that when small investors buy into a stock it’s a sell signal. A “small investor” is defined as someone who buys small lots (hundred share orders rather than thousands of shares) or odd lots (less than one hundred shares).