ETF's, instruments of diversification.
Preliminaries : Since years, investors are used to select and buy Mutal Funds as instruments of diversification. A lot of products are available in the market but only a few that beat their benchmark on a long run. Thankfully for us, S&P and Moody's are thanks for us the gatekeepers of the mutual funds temple. They allow each investor to compare the performances of different fund houses in the market jungle.You can use their services to protect yourself from the subjectivit