S&P Dow Jones Indices has tweaked the methodology for its 11 Select Sector indices tracked by $300bn in exchange traded funds in response to large market swings in the technology industry, the index provider has disclosed.
标普道琼斯指数披露，为应对科技行业的大幅市场波动，该指数提供商调整了其11个精选行业指数的编制方法，这些指数受到3000亿美元的交易所交易基金跟踪。
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