POT-Potash Corp This stock's daily movement is amazing. I like it. I have one question though. On 6/17/07 around 11AM Eastern, the stock jumped $2.50 instantly due to heavy institutional volume. Then the stock plummeted as did the rest of the market. When I see stocks jump like that, I automatically look for news thru my broker's streaming news service. I could not find any. So, whatever big institution bought it, they obviously placed some type of order where they buy at a specific price, it was not a limit order as I know what limit orders are (limit order is at that price or lower), they bought it at a higher price than the current stock price. What type of order did they place (stop? stop limit?). The stock jumped from about $74 to $76 in about five seconds. This is one reason why I do not like trading stocks as they can gap any time. I would rather trade indices or the eminis since there is not as much volatility, but indices do not move like stocks do. Any comments? Thanks.