![Bats Europe tweaks new auction book to tempt big trades](https://assets.fnlondon.com/2016/09/IMG012598_full4x3.jpg)
Bats Europe, the region's largest stock exchange operator, is to give its users the option of stipulating a minimum execution size on its new order book that runs auctions throughout the day, a feature now seen as key to luring bigger trades to the platform.
The exchange, which accounts for about a quarter of all European equity trading, in October 2015 launched a periodic auction book that holds a series of very short auctions throughout the day.