The corporate debt bubble is the large increase in corporate bonds, excluding that of financial institutions, following the 2008 financial crisis. Global corporate debt rose from 84% of gross world product in 2009 to 92% in 2019, or about $72 trillion. In the world's eight largest economies—the United States, China, Japan, the United Kingdom, France, Spain, Italy, and Germany—total corporate debt was about $51 trillion in 2019, compared to $34 trillion in 2009. Excluding debt held by financial institutions—which trade debt as mortgages, student loans, and other instruments—the debt owed by non-financial companies in early March 2020 was $13 trillion worldwide, of which about $9.6 trillion was in the U.S.