“…On the other hand, focusing on the short investment horizon while ignoring the relatively long ones is prone to generate biased risk loadings, which are dependent largely on time interval and systematic risk (e.g., Levhari & Levy, 1977). Besides, the stock price dynamics reflect the heterogeneity in investors, which is embodied in three stock price patterns (Han, Zhou, & Zhu, 2016) that are investment horizon dependent: the short-term (at daily, weekly, and monthly level) reversals (Jegadeesh, 1990;Lehmann, 1990;Lo & MacKinlay, 1990), the medium-term (6-to 12-month level) momentum (Jegadeesh & Titman, 1993), and the long-term (3-to 5year level) reversal effects (De Bondt & Thaler, 1985). They focus on how investors and traders in financial markets differ in investment time horizons (for instance, intraday investors, day investors, market makers, short-term traders, and long-term traders) and how stock price reflects the aggregation of term-varying activities.…”