股市指數 An index that measures the value of a presumed portfolio of stocks. The stocks in the portfolio are chosen in such a way so that the movement of the overall market can be accurately reflected. The index therefore facilitates investors to analyse the market conditions over time. An index can also reflect the performance of a particular sector like transportation or banking. 計算推定股票投資組合價值的指數。投資組合的股票選擇是基於可正確地反映整體市場的趨勢。有關的指數因而可方便投資者在某一段時間分析市場狀態。 指數也可反映個別行業的表現,例如交通運輸或銀行。 |