Momentum strategy
Relative-Strength Momentum
Buy the past 3–12 month winners and avoid or short the losers — a diversified bet that a stock's own recent price trend is the best predictor of its next few months.
3–12 month formation period, held 3–12 months; rebalanced monthly or quarterlyIntermediate
Narasimhan Jegadeesh & Sheridan Titman — “Returns to Buying Winners and Selling Losers: Implications for Stock Market Efficiency” (Journal of Finance, 1993)