Although Apple stock has posted significant gains since Berkshire's initial purchase in 2016, some on Wall Street are calling for even further share price appreciation. In particular, Dan Ives of Wedbush Securities has a $300 price target on Apple stock -- implying 32% upside as of the market close on Sept. 24.

Warren Buffett isn’t the only one who likes the energy sector. Alongside Berkshire Hathaway’s huge purchases of Occidental Petroleum shares, insiders at energy companies have been buying large amounts of stock for weeks and selling very little.

Bank of America Corporation (NYSE:BAC) is arguably one of the best Warren Buffett stocks to buy, according to analysts, to gain exposure in the US banking sector. Best known for offering an array of banking services and investment products, it holds over $2 trillion in customer deposits, affirming its stability and credibility.

Warren Buffett’s Berkshire Hathaway (NYSE:BRK-B) may have offloaded a massive chunk of Apple (NASDAQ:AAPL) stock this year. Still, there are plenty of reasons to hang on as the Oracle of Omaha books profits,

Warren Buffett has purchased $345 million worth of Berkshire Hathaway stock in the June quarter. This brings the year-to-date total to $2.6 billion and nearly $78 billion since 2018. Regular buybacks suggest that Buffett believes Berkshire stock is often undervalued.