Latency arbitrage is a type of trading that relies on ultrahigh speeds; it's not clear which firms engage in it or how pervasive it is.
潜伏套利属于一种依赖于超高速度的交易，还不知道有哪些公司参与了这种交易，也不知道这种交易有多普遍。
2
A trust company may engage in stock index futures trading for the purpose of hedging, arbitrage or speculation with its single trust business.
信托公司单一信托业务可以套期保值、套利和投机为目的开展股指期货交易。
3
The variety of dividend tax rate is one of the reasons that cause the variety of stock pricing; it also induces the arbitrage opportunities and additional trading around ex-date.