Certain MM's know when news is coming, and what news is coming. Pre-news activity runs rampant in the Pink Sheets and OTCBB. You'll see trades of 100 shares for stocks which are sub-penny, and which send the pps down. The MM's are working 24/7 on these stocks. They also employ folks to come on message boards to disuade potential investors should they see a run coming on a stock which they have shorted.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.