After school, as I was trying to find a profession that would be financially rewarding but would also allow me to use what I studied, I started looking at the financial industry. Quantitative trading includes all trading which use quantitative techniques; most quantitative trading involves using techniques to value market assets like derivatives but the trading decision may be systematic or discretionary. Following the ideas of Irene Aldridge’s, [3] who describes a specific HFT system, a more general systematic trading system should include these elements:. Entrenched incumbents may be harder to dislodge here. Categories : Financial markets Economic systems. Our results indicate that both survivor-ship and back fill biases are potentially serious problems.