One of the biggest trades this year, it took the form of a £2000-apoint down-bet on the December Footsie from an opening level of 5240. The client arranged with IG to have a guaranteed stop at 5340. This meant that if the market went the wrong way, IG would close the bet at 5340 - so there was no way the customer could lose more than 100 points (5340 minus 5240), or £200,000.