Wall Street sees only modest upside in Nvidia, but analysts are projecting significant gains for Snowflake shareholders.The S&P 500 (^GSPC 0.11%) has advanced 11% year to date, and Nvidia (NVDA 4.89%) alone is responsible for one-third of those gains. The chipmaker has seen its share price surge 121% since January due to strong demand for data-center compute and networking products, especially those related to artificial intelligence.However, Wall Street expects Nvidia to lose momentum over the next year. T ...