George Spritzer is a full-time investor who recently retired from his day job as a quantitative programmer at an investment bank in order to focus on managing his assets. He manages a fairly large portfolio, using a variety of quantitative strategies for diversification, among them: screening models that use both fundamental and technical data, exploiting stock market "anomalies", closed end fund arbitrage and deep value microcap investing.

His writing that appears on Seeking Alpha focuses on investments with holding periods of weeks to months.

Visit his site: Quant Investor