Following the recent pullback in Tesla (TSLA) shares, Morgan Stanley analyst Adam Jonas revisited his thoughts on the stock and concluded that, at current valuation, Tesla remains "a rather expensive call option" on the addressable markets of next-generation transportation and energy.

With protectionism an increasing worry as Tesla threatens to "flood" international markets with its electric vehicles, Jonas sticks by his view that "very large and well capitalized" tech competitors, such as Apple (AAPL) and Alphabet (GOOGL) will be making "increasingly conspicuous" efforts to encroach on Tesla's territory. He maintains an Equal Weight rating and $305 price target on Tesla shares.