RISK FREE INVESTMENT

Suppose you owned a portfolio  of U.S. government bonds with a maturity date of 30 years. Would your portfolio be riskless?

What if your portfolio  of 30-day Treasury bills? Every 30 days your bills mature, and you reinvest the principal in a new batch. . Is your portfolio truly riskless?

Can you think of any asset that would be completely riskless? Which security is closest to being riskless? Explain.