Select Wall Street analysts are very bullish on chipmaker Broadcom and energy drink company Celsius.Stock splits are popular with investors. They make shares more affordable, and can also spotlight quality stocks. That's because splits are only necessary after substantial and sustained share price appreciation, which itself is often indicative of a company with solid financials and compelling growth prospects.Nvidia (NVDA -2.10%) is an excellent example. The Wall Street Journal has described the chipmaker a ...