For retail investors, momentum and trends can be drivers of investment decisions and interest. The stocks that analysts and other investors are talking about most may hold a special appeal (although timing the market and ensuring that you buy in at an appropriate time are difficult challenges). But many of the most popular stocks— companies including Apple Inc. NASDAQ: AAPL, Amazon.com Inc. NASDAQ: AMZN, and NVIDIA Corp. NASDAQ: NVDA—trade for well over $100 per share, making them inaccessible to some inves ...