Warren Buffett’s famed stock portfolio has grown to a market value of $281.17 billion at the end of 2020, with a cumulative actual price for the entire portfolio of $108.62 billion. Last year, Berkshire earned $4.9 billion in realized capital gains and $26.7 billion in net unrealized gains from its stock holdings. In Buffett’s annual letter to Berkshire Hathaway (BRK-A, BRK-B) shareholders, the renowned stock picker shared the 15 common stocks that had the largest market value at the end of 2020. Berkshire owns large stakes in companies like AbbVie (ABBV), American Express (AXP), Apple (AAPL), Bank of America (BAC),...