(Here's a repeat of an article I wrote in 2010. The information is still relevant today - and the controversy still rages - Chip)
Yesterday, we received a question about our Detrended Price Oscillator (DPO) calculations. The reader wanted to know why our DPO values for SPY where completely different from the DPO values provided to him by two competing websites - FreeStockCharts.com and VectorVest.
The reader was nice enough to provide pictures of the charts he was looking at and sure enough the DPO values were very different from ours. Not only that, but the entire
Read More