Shares in Purplebricks start trading today at 137p, after falling 8.5% yesterday.

The tumble came after analyst Jefferies criticised Purplebricks’ business model as being based on listings rather than sales, with no incentive for local property experts focused on winning instructions “with no reward for actually selling a home”.

Its report also said that Purplebricks takes five months to complete a sale, around ten times longer than it takes to find a buyer.

Yesterday, shares started at 150p before falling to a low of 130p, and then recovering slightly.

Yesterday’s finishing price is, however, still well above the initial float price of 100p last September.