Monsanto Company (NYSE:MON) reported earnings this morning. The agriculture chemical maker beat on earnings but missed on revenues. Monsanto initially shot higher, Wall Street cheering the results and investors eager to buy. However, since the initial push higher, it has fallen substantially and is putting in the technical signal called a topping tail. A topping tail that occurs at the highs of a chart has a high probability of being a long term pivot to a bigger down move. The key here is to monitor Monsanto and at the close today, confirm it is a topping tail. If it is, look for substantial downside in the coming months.