Berkshire Hathaway's (BRK.A) (BRK.B) chief Warren Buffett probably has grand visions for his position in tech king Apple (AAPL) .

"He clearly views it as a long-term hold, and it will certainly compound over $1 trillion in the not too distant future -- and then double again in the next five years," says former hedge fund manager and Buffett expert Whitney Tilson. "I don't think it's a bad bet, as a Berkshire shareholder I am happy he owns Apple."

Watch what Tilson thinks about struggling electric car maker Tesla (TSLA) here.

Apple is a holding in Jim Cramer's Action Alerts PLUS member club. Want to be alerted before Jim Cramer buys or sells AAPL? Learn more now.