The recommendations of Wall Street analysts are often relied on by investors when deciding whether to buy, sell, or hold a stock. Media reports about these brokerage-firm-employed (or sell-side) analysts changing their ratings often affect a stock's price.

Two widely held stocks that have delivered subpar performance are Tesla ( TSLA 3.80%) and Starbucks ( SBUX -0.31%). However, both stocks recently jumped as new growth catalysts came into focus, and two Wall Street analysts believe now's the time to buy. Here's why these top stocks are poised to take off in the coming years.

Global stocks are mostly rising after Wall Street pushed closer to record highs following its roller coaster of a summer