volatile securities meaning in Chinese

价格波动证券

The market timing ability of mutual fund managers can be defined as the ability to anticipate whether the general stock market is going to rise or fall and to adjust the composition of their portfolios accordingly . that is , if the managers think they have the ability to anticipate that the market is going to rise , they shift the composition of their portfolios they manage from less to more volatile securities . if they think the market is going to fall , they shift into the opposite direction
证券投资基金(以下简称“基金” )的择时能力是指基金经理的市场时机把握能力,即如果基金经理相信自己能够准确预测市场趋势,他将根据期望的市场走势调整其投资组合的风险水平,在预测市场收益上升时增加组合的风险水平,下降时降低组合的风险水平,通过高风险资产和低风险(或无风险)资产之间的不断转换来获取超额收益。