We test the invariance-of-bet hypothesis from Kyle and Obizhaeva (2016) for one of the largest order-driven equity markets: the Tokyo Stock Exchange (TSE). The pooled regression coefficients of the log of the number of trades on the log of trading activities range from 0.586 to 0.679, close to...

We test the invariance-of-bet hypothesis from Kyle and Obizhaeva (2016) for the Tokyo Stock Exchange. The pooled regression coefficients of log of the number of trades on log of trading activities range from 0.586 to 0.679, close to the theoretical value of two-thirds predicted by the...

In 2015 the Tokyo Stock Exchange (TSE) implemented Arrowhead Renewal improvements (ARI) that reduced latency from about one millisecond to less than 0.5 milliseconds. Simultaneously, the ARI introduced new risk management functions to improve market fairness by reducing manipulative trading...