Rates are making investors nervous. Specifically, the 10-year Treasury yield. Climbing to 4.8% on Monday and a stone's throw from 5%, the 10-year Treasury yield is at a level that makes investors cautious.

Stocks and bonds declined in response to much better-than-expected job growth. This week's CPI report could further pressure yields.

Bond yields have surged worldwide, threatening to lift mortgage rates and credit card payments for hundreds of millions of people. The U.S. is no exception. The yield on a 10-year Treasury bond, or the amount paid to a bondholder annually,