Investors tend to overlook business-to-business enterprises, even when they succeed.The rise of Broadcom (AVGO -3.89%) seemed to come out of nowhere. Amid the stock's rise, Broadcom's market cap now exceeds $800 billion, making it the 11th-largest company trading on the U.S. market.Still, this is not among the top stocks in the semiconductor and software industries, as the average consumer has little direct contact with its products. Hence, the question for investors is how they might have missed this stock ...