Long Term Bonds
Long term bond funds generally have an average maturity around 20-25 years. The returns on the site use a 30-10 model that mirrors popular Bloomberg Barclays index methodology, but the results are also decent proxies for long term bond funds with longer maturities between 20-30 years.
While there are many different types of bonds, the most important feature that generally drives comparative returns is the credit quality. The calculations here are all based on the highest quality bonds issued by the treasury of the country in question.
Treasury bonds are generally considered the safest form of bond, since because the government can always print more money there’s virtually no default risk.
Long term treasuries have high interest rates and are quite volatile, which works well in some portfolios but not in others. If you’re looking to add several uncorrelated assets for regular rebalancing purposes, consider trying some long term treasuries in your portfolio.