UK – American Express is reported to be close to finalising a deal to buy Threadneedle Investments – though all parties are declining comment.

According to UK press reports, a deal could be finalised as early as next week, and that American Express could be paying 300 million pounds (428.9 million euros) for Threadneedle to parent company Zurich Financial.

All parties said that it was their policy not to comment on market rumours.

Threadneedle Investments manages more than 43 billion pounds (61.6 billion euros) in assets. The London-based business was formerly known as Scudder Insurance Asset Management before its US based parent company, Scudder was acquired by Zurich.