 The contract for the calendar year 2009, which expired in March 2010 (expiry is the last working day in the following March to ensure this is after publication of the IPD data) settled at 103.50, representing a +3.5% annual total return (as published by IPD).Though a nascent market, in 2010 a total of 3,304 contracts traded according to the Eurex website - representing £165m in notional property value.On Friday 4 May 2007 the International Swaps and Derivatives Association (ISDA) released the 2007 Property Index Derivatives Definitions.