Mortgage-backed securities in the context of "Government National Mortgage Association"

The Great Recession was a period of market decline in economies around the world that occurred from late 2007 to mid-2009, overlapping with the closely related 2008 financial crisis. The scale and timing of the recession varied from country to country (see map). At the time, the International Monetary Fund (IMF) concluded that it was the most severe economic and financial meltdown since the Great Depression.

The causes of the Great Recession include a combination of vulnerabilities that developed in the financial system, along with a series of triggering events that began with the bursting of the United States housing bubble in 2005–2012. When housing prices fell and homeowners began to abandon their mortgages, the value of mortgage-backed securities held by investment banks declined in 2007–2008, causing several to collapse or be bailed out in September 2008. This 2007–2008 phase was called the subprime mortgage crisis.

The 2008 financial crisis, also known as the global financial crisis (GFC) or the Panic of 2008, was a major worldwide financial crisis centered in the United States. The causes included excessive speculation on property values by both homeowners and financial institutions, leading to the 2000s United States housing bubble. This was exacerbated by predatory lending for subprime mortgages and by deficiencies in regulation. Cash out refinancings had fueled an increase in consumption that could no longer be sustained when home prices declined. The first phase of the crisis was the subprime mortgage crisis, which began in early 2007, as mortgage-backed securities (MBS) tied to U.S. real estate, and a vast web of derivatives linked to those MBS, collapsed in value. A liquidity crisis spread to global institutions by mid-2007 and climaxed with the bankruptcy of Lehman Brothers in September 2008, which triggered a stock market crash and bank runs in several countries. The crisis exacerbated the Great Recession, a global recession that began in mid-2007, as well as the United States bear market of 2007–2009. It was also a contributor to the 2008–2011 Icelandic financial crisis and the euro area crisis.

During the 1990s, the U.S. Congress had passed legislation that intended to expand affordable housing through looser financing rules, and in 1999, parts of the 1933 Banking Act (Glass–Steagall Act) were repealed, enabling institutions to mix low-risk operations, such as commercial banking and insurance, with higher-risk operations such as investment banking and proprietary trading. As the Federal Reserve ("Fed") lowered the federal funds rate from 2000 to 2003, institutions increasingly targeted low-income homebuyers, largely belonging to racial minorities, with high-risk loans; this development went unattended by regulators. As interest rates rose from 2004 to 2006, the cost of mortgages rose and the demand for housing fell; in early 2007, as more U.S. subprime mortgage holders began defaulting on their repayments, lenders went bankrupt, culminating in the bankruptcy of New Century Financial in April. As demand and prices continued to fall, the financial contagion spread to global credit markets by August 2007, and central banks began injecting liquidity. In March 2008, Bear Stearns, the fifth-largest U.S. investment bank, was sold to JPMorgan Chase in a "fire sale" backed by Fed financing.

The American subprime mortgage crisis was a multinational financial crisis that occurred between 2007 and 2010, contributing to the 2008 financial crisis. It led to a severe economic recession, with millions becoming unemployed and many businesses going bankrupt. The U.S. government intervened with a series of measures to stabilize the financial system, including the Troubled Asset Relief Program (TARP) and the American Recovery and Reinvestment Act (ARRA).

The collapse of the United States housing bubble and high interest rates led to unprecedented numbers of borrowers missing mortgage repayments and becoming delinquent. This ultimately led to mass foreclosures and the devaluation of housing-related securities. The housing bubble preceding the crisis was financed with mortgage-backed securities (MBSes) and collateralized debt obligations (CDOs), which initially offered higher interest rates (i.e. better returns) than government securities, along with attractive risk ratings from rating agencies. Despite being highly rated, most of these financial instruments were made up of high-risk subprime mortgages.

In finance, subprime lending (also referred to as near-prime, subpar, non-prime, and second-chance lending) is the provision of loans to people in the United States who may have difficulty maintaining the repayment schedule. Historically, subprime borrowers were defined as having FICO scores below 600, although this threshold has varied over time.

These loans are characterized by higher interest rates, poor quality collateral, and less favorable terms in order to compensate for higher credit risk. During the early to mid-2000s, many subprime loans were packaged into mortgage-backed securities (MBS) and ultimately defaulted, contributing to the 2008 financial crisis.

A repurchase agreement, also known as a repo, RP, or sale and repurchase agreement, is a form of secured short-term borrowing, usually, though not always, using government securities as collateral. A contracting party sells a security to a lender and, by agreement between the two parties, repurchases the security back shortly afterwards, at a slightly higher contracted price. The difference in the prices and the time interval between sale and repurchase creates an effective interest rate on the loan. The mirror transaction, a "reverse repurchase agreement," is a form of secured contracted lending in which a party buys a security along with a concurrent commitment to sell the security back in the future at a specified time and price. Because this form of funding is often used by dealers, the convention is to reference the dealer's position in a transaction with a counterparty. Central banks also use repo and reverse repo transactions to manage banking system reserves. When the Federal Reserve borrows funds to drain reserves, it can do so by selling a government security from its inventory with a commitment to buy it back in the future; it calls the transaction a reverse repo because the dealer counterparty to the Fed is lending money. Similarly, when the Federal Reserve wishes to add to banking reserves, it can buy a government security with a forward commitment to sell it back. It calls this transaction a repo because the Fed counterparty is borrowing money.

The repo market is an important source of funds for large financial institutions in the non-depository banking sector, which has grown to rival the traditional depository banking sector in size. Large institutional investors such as money market mutual funds lend money to financial institutions such as investment banks, in exchange for (or secured by) collateral, such as Treasury bonds and mortgage-backed securities held by the borrower financial institutions. An estimated $1 trillion per day in collateral value is transacted in the U.S. repo markets.