Uber (UBER) shares notched a new all-time high this week, but Friday's downgrade from Canaccord takes the ride-hailing company to a hold rating down from a buy. The analyst cut its price target to $84 from $90 as it say the company's outcome "is truly unclear" as autonomous vehicles continue entering the market. Rick Ducat examines the chart, Tom White compiles an example options trade with a bearish tilt.