We extend the framework of trading strategies of Gatheral [2010] from single stocks to a pair of stocks. Our trading strategy with the executions of two round-trip trades can be described by the trading rates of the paired stocks and the ratio of their trading periods. By minimizing the...

There are non-vanishing price responses across different stocks in correlated financial markets. We further study this issue by performing different averages, which identify active and passive cross-responses. The two average cross-responses show different characteristic dependences on the time...

Liquidity commonality is defined as liquidity co-movements across assets or markets. In the current literature, it is measured relative to a single factor, i.e., the average liquidity across assets or markets. However, liquidity co-movements may not be fully captured by this single factor. Other...