Warren Buffett (Trades, Portfolio), who is arguably the best investor the world has ever seen, once said that his favorite holding period for a stock is “forever," highlighting the guru's preference for owning a stake in an undervalued, high-quality business for a long period of time. Until recently, Berkshire Hathaway's ( BRK.A , Financial)( BRK.B , Financial) equity portfolio mostly followed this long-term approach to investing, except a few cases where the situation changed.
Is Buffett's Investment Strategy Changing?