Boerse Stuttgart’s trading segment ETF Bestx has been designed to meet the needs of retail investors. Maximum spreads and minimum trade volumes are specified for the around 400 exchange-traded funds (ETFs) listed in the segment. Retail investors who trade in the ETF Bestx segment benefit from outstanding price quality thanks to Boerse Stuttgart’s trading experts and other official market makers whose role includes the provision of a continuous stream of buying and selling price information within the stipulated maximum spreads for all the ETFs listed in the segment. Retail investors can therefore be very confident that their orders will be executed rapidly during the trading day from 8.00 to 22.00 hours CET. By remaining open well into the evening, Boerse Stuttgart can monitor the ETF orders it has received until the US market closes. This reduces the overnight period during which order limits are not monitored to just ten hours. Trading in the ETF Bestx segment is based on a clearly defined set of rules. The quality of price determination and execution is checked by Boerse Stuttgart’s independent Trading Surveillance Office. Boerse Stuttgart’s hybrid market model incorporates trading experts into the electronic trading of ETFs. Their roles are to ensure the quality of price determination, even when the markets are volatile, to avoid partial executions and to facilitate active stop-order management.