Actually the continuous cross is the special one from strictly the auction design perspective. I am very familiar with discrete auctions and their advantages an

Actually the continuous cross is the special one from strictly the auction design perspective. I am very familiar with discrete auctions and their advantages and drawbacks. It turns out there there are many times to participate in such discrete crosses. Nasdaq for instance runs 3 or 4 every day in addition to the opening and closing crosses. Just remember that from a market structure perspective, the continuous cross is the best for liquidity. All markets for things like derivatives try to move in the direction of a continuous cross over time.