There have been talks about rising short interest in Canadian banks.
The article from Financial Times titled The Big Short's Steve Eisman raises bets against Canadian banks published in March 2019, stated:
...collective wagers against Canadian banks have risen 19% since the start of the year to positions worth US$12.3 billion...
Steve Eisman was one of the smart guys who made a lot of money from the implosion of the subprime mortgage market during the financial crisis about 10 years ago in the United States.
So, the headline with Eisman's name in it surely catches