This latest fall in its share price could seal its fate as a Footsie constituent. The chances are it will now drop out of the index to make way for the soon-to-be demerged British Telecom subsidiary mm02. BT firmed 13p to 353p. Broker Credit Lyonnais has issued a cautious note on the property sector and downgraded the net asset value of some big players. It has told clients to top-slice their holdings. It rates Great Portland, 1p better at 248 1/2p, a hold, while Hammerson, 1/2p lower at 461 1/2p, remains a buy.