PT - JOURNAL ARTICLE AU - Ying Zhang AU - Ronald Zhao TI - An Investment Strategy Based on Value Line’s Dual-Rank System AID - 10.3905/joi.2011.20.4.040 DP - 2011 Nov 30 TA - The Journal of Investing PG - 40--49 VI - 20 IP - 4 4099 - https://pm-research.com/content/20/4/40.short 4100 - https://pm-research.com/content/20/4/40.full AB - In this study, we document that the Value Line enigma originating from a timeliness single-sort portfolio no longer holds once trading costs are taken into account. In addition, we discover that safety ranks help explain cross-sectional stock returns within optimistic timeliness ranks. The information complementarity between timeliness and safety ranks makes it advisable to formulate a better investment strategy by constructing cross-ranking portfolios to yield significant abnormal returns allowing for conventional risk factors and transaction costs.TOPICS: Portfolio construction, equity portfolio management, technical analysis