Coutts' 'rival to Nutmeg' investment business has had its best ever month for inflows in January 2021, with £55.5m of net new money arriving at the firm.
The flows came through a mix of advised and non-advised channels through NatWest Invest, Royal Bank Invest and Coutts Invest and have seen the business's assets under management reach the £1bn milestone.
The range, which was launched in 2016, is called Personal Portfolio Funds and has 47,000 customers. This implies the median size of portfolio per client is £21,000.
The firm said January 2021 was the "highest month on record for inflows".
Mohammad Kamal Syed, head of asset management at Coutts, said: “A core part of the bank’s strategy is to help our customers and clients across the entire group to save and invest for their future to support them in their key life moments.
"We now have over 47,000 customers invested in our Personal Portfolio Funds and the fact that we have achieved £1bn of assets invested into them shows how we are truly supporting our customers in their saving journeys.
"Across NatWest Group there is a real drive to do whatever we can to close the UK’s savings gap. Our PPF offering and the invest platform itself is fundamental to helping us do that - to see consistent growth is great and confirms our strategy is working."
The Personal Portfolio Service uses only passive investment strategies in its portfolios.
There are five funds, depending on the client’s appetite for risk.
Rival Nutmeg revealed in January it had reached £2bn of assets under management.