| 摘要 |
<p>Methods and supporting systems for determining whether a trade order is permitted according to a predefined exposure limitation include storing a set of instrument data that represents both an actual and a permitted maximum number of instrument units that are owned, purchased or that an entity is otherwise exposed to per a first unit of time. A request to execute a trade for one or more strips of financial instruments is received, where each strip includes the instrument units, each of which is associated with a second unit of time. A stepped graph is constructed for the financial instrument based on the stored instrument data, wherein one axis of the stepped graph represents a time period covering the strip of contracts and another axis represents a total exposure to the financial instrument. The received request is compared to the stepped graph to determine whether the permitted maximum number of investment units would be violated for one or more of the first units of time should the requested trade execute. The trade is then allowed to execute if no violation is determined, and blocked otherwise.</p> |
