In fact, the contrary is true. The stock market itself is the best predictor of the future funda- mental trend. Most often, prices start rising in a new bull trend while the economy is still in recession (position B on chart shown above), i.e. while there is no cause for such an uptrend. Vice versa, prices start falling in a new bear trend while the economy is still growing (position A), and not providing fundamental reasons to sell. There is a time-lag of several months by which the fundamental trend follows the stock market trend. Moreover,
this is not only true for the stock market and the economy but also for the price trends of individual equities and company earnings. Stock prices peak ahead of peak earnings while bottoming ahead of peak losses.
The purpose of technical analysis is to identify trend changes that precede the fundamen- tal trend and do not (yet) make sense if compared to the concurrent fundamental trend.