OneChronos is a Smart Market leveraging the power of optimization search techniques to match and clear buyer's and seller's orders efficiently and in a way that maximizes Aggregate Price Improvement achievable by those orders. The optimization problem these auctions pose is "computationally intractable", because the flexible "Expressive Bidding" that the ATS allows for creates an astronomical number of possible matches to search through. Traditionally, these optimizations are solved using a technique called integer programming and would run for hours or days at a time. To operate at the speed of equities markets and to scale effectively, OneChronos uses AI in an effort to guide our optimizer toward areas of that search space containing higher quality matches, and ultimately better satisfy the objective of maximizing Aggregate Price Improvement.