Technical analysis is the part of the premise in which price discounts everything. That is all the information known until today, business results, macro data, etc. The actual price is considering all of this. The inversion decision with the technical analysis resides in analyzing the price graphs, the indicators and price patterns.
If you want more information about the stock-market analysis, here you have another article that you may find interesting.
Quantitative: the third type of stock-market analysis