![Options Oracle: 12/04/14 too-120414](https://themarketguys.com/wp-content/uploads/2014/12/too-120414-120x100.png)
I often talk about fan lines as one of the best ways to measure the strength of a trend. However, as the angle of the trend continues to increase the probability of a price correction also increases. In this example, the angle of the 3rd perfectly with the 20-day moving average.