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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To improve the identification efficiency, the auto index system of the main broad-leaved trees in Guizhou province was established, which based on the data of the trees.

为提高树种的鉴定效率，本研究基于贵州省主要阔叶树种资料建立了贵州主要阔叶树种自动检索系统。

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Along with the broad-based Topix index, the Nikkei is now nearly one-fifth below its peak for this year, in April, and more than three-fifths below its all-time high.

ECONOMIST: Twitchy foreign hedge funds have sold too soon

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.

WSJ: Advisers Discover 'Managed ETF Portfolios'

Scottrade took the FocusShares gambit after the fund firm closed some more esoteric products in 2008. ( The WalMart Supplier Index ETF, anyone?) In 2011, FocusShares relaunched with broad-based ETFs on Morningstar indexes.

FORBES: ETF Distribution Breakdown