We recently published 13 Best ADR Stocks to Invest In.  Shell plc (NYSE:SHEL) is one of the best ADR stocks. Shell plc (NYSE:SHEL)’s shares were downgraded by UBS on November 25th on the back of recent strong performance, which left the bank wary of future gains. The price target change covered the firm’s shares that trade on the London Exchange. These shares have gained more than 8% year to date, and UBS cut the target to £30 from an earlier £32. Alongside the target cut, the bank also reduced the rating ...