A number of agents listing with OnTheMarket will still have to observe the One Other Portal (OOP) rule after the business floats on the stock exchange.

The portal will be dropping the stipulation for new joiners, and is also lifting its ban on online agents. Emoov has confirmed to EYE that it has asked about joining.

While new joiners and those with new contracts will be free to list on all three of the main portals – Rightmove, Zoopla and OTM as well as others – those agents on existing contracts will have to stick to the original terms.

EYE asked for clarification of the OOP rule after the listing on AIM which is set for February 9.

A spokesperson for OnTheMarket.com said: “As a listed company with the increased funds to support marketing and growth following the placing, OnTheMarket will no longer require agents entering new listing agreements to commit to the One Other Portal rule.

“Our contracted agents who did not sign new five-year listing agreements remain on their existing terms, which include their commitment to observe the One Other Portal rule.”

We also asked about the number of agents now with OTM.

Previously, OTM has mentioned the “support” of 6,500 branches, although this figure included agents who had signed Letter of Intent to join OTM when total support reached 7,500 offices. OTM had said it had over 6,300 listing agents as at the end of June 2016 and 6,400 by the end of the following month. It then quoted a figure of over 6,000 in January 2017.

However, Friday’s statement to the London Stock Exchange cited a figure of over 5,500, the same number that Zoopla calculated as OTM’s membership in November last year when it claimed that a total of 1,000 branches had returned to it.

The OTM spokesperson would not say whether or not there has been a falling away of numbers, but told us that there will be an active recruitment campaign aimed at ramping up estate agent members, who will be promised “fair prices” and more.

The spokesperson said: “In the context of admission we are now fully focused on rapidly extending our customer base of estate and lettings agents, remaining committed to our core principles of offering sustainably fair prices for property advertisers and creating a premier search service for the most active property-seekers.

“The IPO will enable us to implement our marketing plans to build brand awareness and portal usage as well as to invest to scale up the supporting organisation and infrastructure to the benefit of consumers, agents and investors.”

Russell Quirk, founder of online agent Emoov, told us that he emailed OTM about joining on Friday – the same day it announced its stock market debut.

* According to a report in The Times on Saturday, backers of OTM include fund manager Schroders, which is taking a 6% stake, and Jason Walker, who has paid £3m for a 3.1% stake. Walker is the entrepreneur behind online bathrooms business Victoria Plumb.

A number of newspapers have criticised the flotation as falling short of what had been first proposed but it is possible that some investors may have been deterred by the possibility of ongoing litigation.

Just before Christmas, Connells brand Gascoigne Halman won leave to appeal the decision by the Competition Appeal Tribunal that OTM’s One Other Portal rule was lawful.