Systems and methods for providing trading using an eVWAP price in an
illiquid market are provided. In an illiquid market there may be little
or no actual trades. During a trading period, the eVWAP price is
therefore determined from not only trades, but also unmatched bids and
offers. The eVWAP price is determined when new information becomes
available or at a specified time interval. The final eVWAP price is
determined when the sampling period ends. Once the final eVWAP price is
determined, the value of the final eVWAP price is published for use as a
price to settle a contract.