* May raise up to $15 bln through debt, preferred shares
* Offerings may be made through October 2011
TORONTO, Sept 10 (Reuters) - Royal Bank of Canada RY.TO may raise up to $15 billion through the sale of debt securities or preferred shares, according to a regulatory filing in Canada.
According to a prospectus filed last Friday, Canada’s largest bank may raise the amount through senior debt securities, subordinated debt securities, or first preferred shares through October 2011.
Last month, the bank posted quarterly earnings that topped expectations helped by a big jump trading revenue that more than offset higher loan-loss provisions. [ID:nBNG485951] (Reporting by Euan Rocha, editing by Gerald E. McCormick)