RT Journal Article SR Electronic T1 A Practical Approach to Liquidity Calculation JF The Journal of Trading FD Institutional Investor Journals SP 57 OP 65 DO 10.3905/jot.2014.9.3.057 VO 9 IS 3 A1 Oleh Danyliv A1 Bruce Bland A1 Daniel Nicholass YR 2014 UL https://pm-research.com/content/9/3/57.abstract AB In this article, the authors propose a new measure for liquidity that allows the user to estimate the liquidity of different instruments, regardless of exchange or the currency in which they are traded. The measure can be estimated from the order book data or by using historic measurement over the day. These two forms of the metric have proved to be well correlated with each other and allow for real-time monitoring of markets or historical calculation of liquidity. A simple liquidity algebra is considered to calculate the liquidity for portfolios of both stock and exchange-traded fund instruments.TOPICS: Accounting and ratio analysis, quantitative methods, equity portfolio management