I am new to managing my TSP allocations. it seems like a lot of people are heavily invested in the S fund versus the C fund. It looks like the C fund matches the S&P 500 and the S fund matches the Dow Jones. However, when you look at the performance, the S&P is up over 22% and the Dow is 17.5%, but the C fund is up 24.5% and the S is up 32.1%. So based on that, there must be more to it than the C fund is the S&P and the S is the Dow?