Investment banking and financial services also make up an important part of the economy. Major world banks with offices in Antigua include the Royal Bank of Canada (RBC) and Scotiabank. Financial-services corporations with offices in Antigua include PriceWaterhouseCoopers. The US Securities and Exchange Commission has accused the Antigua-based Stanford International Bank, owned by Texas billionaire Allen Stanford, of orchestrating a huge fraud which may have bilked investors of some $8 billion.