It is a broad based stock index, comprised of 30 companies and it is price weighted.

这是一个基础广泛的股票指数，组成30家公司和它的价格的加权。

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In the preface, the stock Index futures is defined as a futures contract based on stock indices.

在引言中，给出股指期货定义是指以股票指数为基础交易物的期货合同。

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Based on the above, the article studies completely the liquidity of China stock market with the method of index system, including short-term liquidity study and long-term liquidity study.

基于此，本文采用指标体系的方法，对中国股票市场的流动性进行了全面的研究，具体包括：短期流动性研究和长期流动性研究。

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That would make a U.S.-based stock index, such as the broad-market Russell 3000, an appropriate measuring stick for the fund, Mr. Gogerty says.

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If I am correct, a choppy market this month this will make it difficult for those who invest in index-based products while stock pickers who concentrate on entry levels and risk should do much better.

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Although stock or index selection is generally based on volatility characteristics and the size of specific equities, low volatility ETFs, de facto have sector concentrations investors should keep in mind when they are making their selections.

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