The investment seeks the daily changes in percentage terms of its units' NAV to reflect the daily changes in percentage terms of the spot price of gasoline, as measured by the daily changes in the price of the futures contract on unleaded gasoline (also known as reformulated gasoline blendstock for oxygen blending, or "RBOB") for delivery to the New York harbor, traded on the NYMEX that is the near month contract to expire, except when the near month contract is within two weeks of expiration, in which case it will be measured by the futures contract that is the next month contract to expire, less UGA's expenses.