Ameriprise Financial, America’s leading financial planning company, has taken its stake in JD Wetherspoon (JDW), the managed pub operator, to over 10%. The company said it was now interested in 13.25 million of the pub company’s shares, up from 7.80 million. The news pushed shares in JDW up 4.90p in afternoon trading to 435p, valuing the company at £572.356m.