一、流动性衡量理论基础在已有的衡量流动性的方法中,有价格法,主要用买卖价差来衡量个股的流动性;交易量法,应用得最多同时也为广大投资者所熟悉的是换手率。买卖价差衡量流动性的局限在于对交易规模不敏感等多个方面;而换手率忽略了价格变化的影响,而价格变化往往是衡量流动 First, the liquidity measurement theory basis In the existing measure of liquidity, the price method, the main use of the spread to measure the liquidity of individual stocks; volume method, the most widely used but also for the majority of investors are familiar Change rate. The bid-ask spread is a measure of liquidity that is insensitive to the size of the transaction and other aspects; the turnover rate ignores the impact of price changes, and the price changes tend to be measures of liquidity