Tilray shares go on roller-coaster ride before company ends day worth more than Tim Hortons' parent firm

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      The wildest stock market story of the day once again involved a Nanaimo-based cannabis producer.

      Tilray shares opened at US$233.58 after a rapid overnight run-up.

      By early afternoon, they peaked at US$300 before plunging to a low of US$151.40.

      Then a late-day rally pushed the stock to US$214.06 at the close, up 38.12 percent from yesterday's close.

      Tilray's market capitalization is US$19.94 billion, which works out to $25.77 billion Canadian.

      That puts it well ahead Restaurant Brands International's market cap of $19.2 billion. RBI owns Tim Hortons, Burger King, and Popeyes Louisiana Kitchen.

      When Tilray was ready to launch its initial public offering on NASDAQ in July, it priced the shares at US$17,

      The value has since risen by more than 1,250 percent.