The agency says the foreign investment was focused on the corporate sector.
Meanwhile, Canadian holdings of foreign securities edged lower, led by the sale of U.S. stocks.
Foreigners invested $6.1 billion in Canadian bonds in October, mainly new bonds denominated in U.S. dollars.
At the same time, foreign investors cut their holdings of Canadian money market instruments by $6.2 billion in October, following six straight months of investment totalling $12.4 billion.
This was the largest divestment since July 1994 and was mainly led by retirements of federal treasury bills.