static QuantityTrackingPriceLevel() { _orderSequenceComparer = new OrderSequenceComparer(); }
static PriceLevel() { _orderSequenceComparer = new OrderSequenceComparer(); }
static QuantityTrackingPriceLevel() { _orderSequenceComparer = new OrderSequenceComparer(); }
static PriceLevel() { _orderSequenceComparer = new OrderSequenceComparer(); }