I have to disagree, I believe that at least 50% of the time the markets are controlled dealing with Commodities futures. When one considers the number of Open Interest compared to number of shares traded with IBM or other heavy traded stocks. Especially in the Meats, it doesn't take much for a few ranchers to force the market to go in one direction for a few hours and THEY are the fundamentals as they can halt sending their livestock to slaughter. Much of the farms are now corporate controlled, the family farms are dropping like flies. The Indexes can be sent for a shorter amount of time by the bigger brokerages in one direction especially by looking at one hour charts, price will continue to trendlines and stop and reverse. What is normal is markets go up, volume reduces, the Pro's are feeding to the inexperienced and when dropping after an extended move, volume increases cause the Pro's are accumulating as the inexperienced generally are taking losses. I can watch this and over 50% of the time I am correct in my observations. The Futures markets were made for the small farmer in mind as a way to hedge, any time governments come into anything dealing with money, can only expect the rich to get richer and poor to get poorer.
I believe with enough study of the "whys" something happens, the better trader you will become. Market trading by the smaller trader is too often based on emotions, I believe the bigger traders/brokerages are aware at what areas these emotions go extreme and are waiting for the inexperienced to bail and experienced will take the other side. I chat with my staff often on why markets move and what to expect. I often tell people I am waiting for the catching a big boulder(protective stops getting hit or targets) and I know it is going to stop most of the time. But I certainly couldn't say this when I first started in 1978.
Trading is all about reoccurring patterns and much of was based on emotions, but we can test to see if these occurrences will show the stats we require to have a high positive expectation of adding to our trading methods. The more one has an open mind and being less rigid regarding to trading, better chances of letting opportunities becoming a reality. Being rigid is like the Hunt Brothers cornering the Silver market in the 80s and losing millions.