Options traded on these shares also cannot trade - there is no underlying market to quote them against.
由于没有基础市场报价，与这些股票相关的期权也无法交易。
As regards stock options, contracts in respect of a total of 17 stocks were traded in the market by the end of the year.
股票期权方面，到1999年年底，共有17只股票的期权合约在市场上买卖。
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