The index of Shenzhen market is more volatile than Shanghai, monthly excessive return rate is opposite between two markets Only a part of speculator could gain positive retum.
The plan for the constrUction of urban rail transit must meet the demand of metropolis traffic, and achieve the purpose of Iow cost, high operation efficiency, and quick flnancial retum.
城市轨道交通建设规划首先要解决大城市交通的需求，并达到建设耗资低、运营效率高、见效快的目的。
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We find that the momentum strategy based on 52 - week high is significantly profitable with an average monthly retum of 0.84% in Chinese stock market, which is more significant than US market.