Total Stock Market Index Or S&P 500 Index! where to invest ?

The performance of the two funds is closely connected since both types of indexes significantly favor large-cap stocks 

By choosing their own allocations, investors may, however, increase their diversification and perhaps their performance.

The S&P 500 for large-cap stocks, the S&P mid-cap 400 for mid-cap stocks, and the Russell 2000 for small-cap stocks

are three examples of three independent indexes that investors may choose to allocate roughly one-third of their portfolio assets to.

Investors must first decide whether equities are suitable for their level of risk tolerance and financial objectives