hmcq,
It is good to understand the fundamentls of a company, however, people like you and me will never understand it to its fullest extent. And then again, dont you think somebody who invest billions into the stock market will have the fundamental information long before it is issued out to us. I only get the very basic information out of income statements, balance sheets and cash flow statements, probably only 10% of the total info. I am, however, good with numbers and graphs, so I rely more (but not solely) on Technical Analysis.
In a perfectly logical world where humans could separate their emotions from investment decisions, then, fundamental analysis the determination of price based on future earnings, would work magnificently. And since we would all have the same completely logical expectations, prices would only change when quarterly reports or relevant news was released.
The price of a stock represents a consensus. It is the price at which one person agrees to buy and another agrees to sell. The price at which an investor is willing to buy or sell depends primarily on his expectations. If he expects the security's price to rise, he will buy it; if the investor expects the price to fall, he will sell it. These simple statements are the cause of a major challenge in forecasting stockprices, because they refer to human expectations. As we all know firsthand, humans are not easily quantifiable nor predictable. This fact alone will keep any mechanical trading system from working consistently.
Because humans are involved, much of the world's investment decisions are based on irrelevant criteria. Our relationships with our family, our neighbors, our employer, the traffic, our income, and our previous success and failures, all influence our confidence, expectations, and decisions.
If prices are based on investor expectations, then knowing what a stock should sell for (fundamental analysis) becomes less important than knowing what other investors expect it to sell for. That's not to say that knowing what a security should sell for isn't important--it is. But there is usually a fairly strong consensus of a stock's future earnings that the average investor cannot disprove.
Technical analysis is the process of analyzing a stock's historical prices in an effort to determine probable future prices. This is done by comparing current price action (current expectations) with comparable historical price action to predict a reasonable outcome.
Investment is exposure to risk and my risk is a lot greater than the billioaire with insider info.