The best stock to have in your portfolio was data centre operator Bitfarms Ltd., with an eye-popping 247.8% return over the 90 days to September 30, followed by cannabis producer Curaleaf Holdings Inc. (233%) and uranium miner Energy Fuels Inc. (171.5%).The 213-member S&P/TSX Composite—the standard index of Canadian stocks—gained 11.8% over the period. Its total return, including dividends, was 12.5%. These numbers compared favourably with the S&P 500 in the U.S., which returned 7.8% (8.1% total return) in ...