Ontario Teachers' Pension Plan is one of Canada's largest institutional investors through their diversified portfolio of Canadian and international assets. Their investing methods rely on achieving the best risk-return balance for its members and thus far, they've been extremely successful. They simply don't invest in things they don't believe in, and they've now given John Chens BlackBerry turnaround plan a vote of confidence.

According to Bloomberg, regulatory filings show Ontario Teachers' Pension Plan bought almost 7.8 million shares of BlackBerry in the third quarter, worth approximately $84.5 million and giving them a 1.6 percent stake in BBRY. 'Given the multitude of changes that occur quarter to quarter, we don't discuss individual stock holdings and increases/decreases in positions,' Deborah Allan, a spokeswoman for Ontario Teachers, noted in an email.