Investors' bold bets on Biden win pose market risk

With less than two weeks to go before the U.S. presidential election, investors may be placing too much confidence in a decisive win by Democratic challenger Joe Biden as his lead in opinion polls narrows.Market participants have in recent weeks pulled back from bets that would benefit from election-related volatility while piling into assets that would benefit from a Biden win, including alternative energy shares and cannabis stocks.As Biden's lead has narrowed in recent days, some market watch