This is because simply ranking bonds by yield volatility across the universe can potentially result in highly concentrated portfolios in duration or quality, which in turn can cause greater portfolio volatility. (indexologyblog.com)
As interest rates have decreased, investors have had to assume greater portfolio risk and asset class diversification to keep pace with their objectives. (pnc.com)
We use it, and recommend it for anyone who invests because of it's great portfolio tracking features. (thecollegeinvestor.com)