Fundamentally Speaking: Supply And Demand
As an algorithmic trading firm, most of our models make extensive use of technical, statistical, and mathematical concepts towards exploiting an edge in markets. Some markets, such as the S&P500 which is an extremely efficient market as defined by statistical measures and price/volume techniques, respond very well to the use of these tools. Other markets, such as Crude Oil, lack the same efficiency seen in the S&P500; however it offers much higher levels of volatility.