Does the Amex have a trade-through rule for Nasdaq securities?
The Amex will maintain its current standards and provide all orders with floor-wide trade-through protection. Orders sent to the Amex receive the benefit of interacting with all trading interest on the floor and the specialist’s limit order book. However, the Amex will not have a trade-through rule similar to the rules for listed trading. When executing block orders, the Amex can execute large quantities of stock at one price, which may be outside the prevailing Nasdaq BBO.
