Ian Springett, chief executive of OnTheMarket, has poured cold water on Zoopla’s latest update to the City.

Yesterday, Zoopla reported that it had grown agency membership numbers by 146 over the summer. It also reported a growth in turnover and profits.

But City analysts disagreed about the results.

One said they were stronger than had been expected and that while OnTheMarket was not out, it was going down.

A second analyst said Zoopla’s results were tepid, and that the growth in membership was only 1% up.

Springett said: “Zoopla Property Group’s latest trading update serves to highlight the success of OnTheMarket, which is already firmly established as a leading portal.

“The key fact is that over 90% of our member agents moved both their properties and the associated listing revenue from Zoopla Property Group when they signed up to OnTheMarket.com

“It is no surprise that its UK agency membership remains 22% down year on year or that it has increased by only 1% since its last update for July.

“Support for OnTheMarket continues to grow daily and we noted analyst William Packer from Exane BNP Paribas referring to ‘a healthy resilience’ across our membership base.”

However, investors liked the Zoopla update and the shares rose 25p (11%) to finish the day on 260p.