You can either create an entire portfolio or fill gaps in an existing portfolio by focusing on specific asset classes or market sectors. (investor.vanguard.com)
In 2007, the credit ratings of specific asset - related securities had been rated higher than they should have been. (investopedia.com)
In other words, what percentage of your portfolio is invested in specific assets such as stocks, bonds and real estate. (smartmoneysmartliving.com)