Two new analysts’ reports have come up with numbers following the launch of OnTheMarket.

Broker Canaccord Genuity has cut its forecasts for both Zoopla and Rightmove, but played down the impact of OTM.

According to Canaccord, the estimated number of estate agent offices using Rightmove since January 26 has fallen by 1,000 (or 6%), while those using Zoopla has dropped 4,000 (18%).

However, highlighting a “poor user experience” on the new OTM, the broker expects “the majority of agents which remain on both Rightmove and Zoopla to increase their advertising spend”.

The second report estimates that Zoopla Property Group’s inventory level is now 70% of Rightmove’s.

The report by William Packer, of Exane BNP Paribas, says that in November it estimated that Zoopla’s inventory was 95% of Rightmove’s.

The analyst has also increased its estimate of how many agents’ offices have churned to OnTheMarket from Rightmove and Zoopla combined.

It had previously estimated 3,100, with a 70:30 split, with Zoopla taking the bigger hit. Exane now expects a total churn this year of 3,800 with a split of 85:15.

However, the report says it expects Zoopla’s traffic to remain sticky “and thus far it is healthy”.

It continues: “Whether Agents’ Mutual members return to Zoopla (and how quickly) are key questions for the longer-term ZPG investment case.

“While we continue to expect ZPG to retain its number 2 position in the market, we expect AM to retain a significant share of inventory into 2016/17 (despite initial weak audience trends at OntheMarket), dragging on revenue and profit growth at Zoopla and a key element of our ‘underperform’ rating.

“We continue to expect AM to struggle to build longer-term audience despite a solid website (albeit missing some functionality).”

Elsewhere in the report, the analyst notes: “We expect Agents’ Mutual to struggle to drive growth in audience and membership longer term due to its limited inventory and marketing firepower.

“However, its success in achieving c4k estate agency branch members at launch has surprised many doubters.”

The report reiterates its ‘outperform’ rating for Rightmove, and an ‘underperform’ rating for Zoopls.

In its updated advice to investors, Exane says: “Rightmove remains a top pick, avoid Zoopla.”

The full Exane report, which also contains regional analysis of inventory, is here