What percentage of the market are in each category (fundamental vs. technical)? Also, I got this from investopedia: "Technical traders, on the other hand, believe there is no reason to analyze a company's fundamentals because these are all accounted for in the stock's price. Technicians believe that all the information they need about a stock can be found in its charts." Doesn't that argument rely on the assumption that the majority of the market consists of fundamental investors that will discount the effects of news and fundamentals into the price? Hypothetically speaking, if the majority of the market were driven by technical analysis, wouldn't that argument be worthless?