Here is something everyone might find interesting. This is a example of a Wyckoff double divergence.....
The following chart shows a recent double divergence between the OP/Price for December Crude Oil Futures.
You can see that as the Technometer reached overbought at the blue circle, the price made its final high, and has been in a sustained downtrend since. It is now entering oversold territory, so we would expect a corrective rally.