Big Five is the name colloquially given to the five largest banks that dominate the banking industry of Canada: Bank of Montreal (BMO), Bank of Nova Scotia (Scotiabank), Canadian Imperial Bank of Commerce (CIBC), Royal Bank of Canada (RBC), and Toronto-Dominion Bank (TD). All of the five Canadian banks maintain their respective headquarters in Toronto's Financial District, primarily along Bay Street. All five banks are classified as Schedule I banks that are domestic banks operating in Canada under government charter. The banks' shares are widely held, with any entity allowed to hold a maximum of twenty percent. According to a ranking produced by Standard & Poor's, in 2017, the Big Five banks of Canada are among the world's 100 largest banks, with TD Bank, RBC, Scotiabank, BMO, and CIBC at 26th, 28th, 45th, 52nd, and 63rd place, respectively. RBC and TD Bank are also on the Financial Stability Board's list of systemically important banks as of 2020. The term “Big Six” is sometimes used to include Canada's next largest bank, National Bank of Canada. Overview The Big Five banks, listed in order of market capitalization on the Toronto Stock Exchange as of year-ended 2021, with their current corporate brand names and corporate profiles according to their latest annual report, all monetary amounts are in billions of Canadian dollars, are: In modern history, Royal Bank (RBC) has always been the largest by a significant margin, although TD Bank has caught up to RBC in recent years. Up to the late 1990s, CIBC was the second largest, followed by Bank of Montreal, Scotiabank, and TD Bank. During the late 1990s and beyond, this ranking changed due to several reorganizations. Royal Bank acquired Royal Trust in 1993, while Scotiabank purchased National Trust in 1997. As Scotiabank found no merger partners among the other banks in the big five group, it instead expanded its international operations and passed the Bank of Montreal in size. TD Bank merged with Canada Trust, which was for a long time the largest trust in Canada, thus vaulting TD into the number two spot. While there were no major changes to Bank of Montreal, CIBC's first unsuccessful foray into the US market led it to shed its assets there, dropping it to the number five spot. Four of the Big Five Canadian banks have acquired independent investment banks, whose activities included corporate banking and full service brokerage. From 2000