Berkshire Hathaway recently filed its second-quarter 13F form, revealing its stock holdings at the end of June.

Berkshire Hathaway’s portfolio added six new stocks, including the three new secret stocks. Warren Buffett was a net seller of stocks for the eleventh straight quarter.

Given Buffett's concern over the stock market, it makes sense for investors to buy the most conservative stocks in the Berkshire Hathaway portfolio.

For decades, Berkshire Hathaway (NYSE:BRK-A)(NYSE:BRK-B) has been synonymous with Warren Buffett, the legendary investor whose Midas touch turned a modest textile company into a global powerhouse. However,