March 31, 2014 (Chinavestor ) There are couple of ways to assess what's happening to Chinese stocks these days. One is to look at latest moves, big and small, and go from there. The other is to look at current move and then put that into perspective. This is what the overbought and oversold monitor is doing. The chart displays today's price compared to where it was two weeks ago. This is represented by the white arrow. The chart displays normal trading range or trading envelope in addition, this is the blue band. Finally, the chart calculates theoretical high and low prices where probability is only 1%-3% that the stock is going to trade there based on historical records.