This fast-growing company could turn out to be a solid long-term investment thanks to a huge end-market opportunity.Super Micro Computer (SMCI -0.23%) has been one of the hottest stocks on the market this year, clocking tremendous gains of 73% as of this writing, but a closer look at the stock's more recent performance tells us that its bull run has come to an end. In fact, shares of Supermicro (as the company is known) are down 58% since hitting a 52-week high on March 8.However, the company, which manufac ...