共需要六个股票指数收盘价
1 Standard & Poor’s 500 Index (S&P500) in the U.S.,
2 the S&P/TSX CompositeIndex (S&P/TSX) in Canada,
3 the Hang Seng Index (HSI) in Hong Kong,
4 the Nikkei 225 Stock Av-erage Index (N225) in Japan,
5 the Shanghai Composite Index (SH) in China 6 the Financial TimesStock Exchange 100 Index (FTSE100) in the U.K..
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