A trade transacted from a specialist's account even though there is a public order that offsets the trade. Taobiz explains Trading AheadTrading ahead is a viol···

A situation in which an order is placed, but not executed, because of a previously sent order involving the same price. Depending on the exchange's priority ru···

指交易商利用得知客户买卖证券动向的机会，抢在客户发出买卖指令之前为牟取利益而进行交易的违规行为。例如在股票大量交易前在期权或期货市场进行相应交易。···