IBM stock is up over 12% so far in 2021 and hit a multi-year high in June Big Blue reported weaker-than-expected Q3 earnings, raising eyebrows Despite potential short-term volatility, buy-and-hold investors could use any further short-term shares price decline as an opportune entry point Investors in tech giant International Business Machines (NYSE:IBM) have seen their shares gain 12.1% year-to-date after hitting a multi-year high of $152.84 in June. But yesterday the stock slid 4% in extende...