The 2007-2008 credit crunch: when banks stopped lending and the crash followed

How did the 2007-2008 credit crunch begin?

Securitization markets began closing in the spring of 2007, as losses on mortgage bonds appeared. Banks and funds that had financed long-term assets with short-term borrowing found that investors would not roll over the loans. A worldwide credit crunch followed in August 2007, when subprime securities turned up in banks and hedge funds around the world (en.wikipedia.org/wiki/Shadow_banking_system).

The trigger was a loss of trust, because nobody could tell which balance sheets held the damaged assets. Lenders who cannot identify the risk reduce all lending, including the lending that was sound. That response is the core of a credit crunch: a doubt about a few borrowers becomes a freeze for many.

What happened on 9 August 2007 in the credit crunch?

On 9 August 2007 the French bank BNP Paribas suspended three investment funds that held subprime mortgage debt, citing a complete evaporation of liquidity. The European Central Bank injected 95 billion euros into the European banking market that day (en.wikipedia.org/wiki/Subprime_crisis_impact_timeline).

A central bank adds cash on that scale when banks stop lending to each other. The date is widely used as the start of the visible credit crunch because the stress moved from a few funds to the plumbing of the banking system. The market for short-term bank funding became the place to watch.

How did bank funding costs and Northern Rock show the credit crunch?

On 4 September 2007 LIBOR, the rate at which banks lend to each other, rose to 6.7975%, its highest level since December 1998 and well above the Bank of England base rate of 5.75%. Banks charged each other more than the central bank rate because they doubted one another’s strength (en.wikipedia.org/wiki/Subprime_crisis_impact_timeline).

On 14 September 2007 Northern Rock sought and received a liquidity support facility from the Bank of England, and a run on its deposits followed. The bank had used short-term wholesale borrowing to finance long-term mortgages, so it was exposed when credit tightened. It was nationalised on 22 February 2008 (en.wikipedia.org/wiki/Northern_Rock).

Which rescues marked the credit crunch in 2008?

Bear Stearns required a government rescue by March 2008 (en.wikipedia.org/wiki/Financial_contagion), and in the summer of 2008 the federal government seized Fannie Mae and Freddie Mac after they suffered large losses (federalreservehistory.org/essays/subprime-mortgage-crisis). Each rescue showed lenders that failure of a large name was possible, and each raised the price of funding for the rest.

Lehman Brothers filed for bankruptcy on 15 September 2008, and the Dow fell 504.48 points that day, its worst decline in seven years at that point (en.wikipedia.org/wiki/Stock_market_crash_of_2008). The credit crunch had reached the stage in which losses at one firm cut credit lines across the system.

How far did the stock market crash after the credit crunch of 2008?

The Dow closed at a record 14,164.53 on 9 October 2007 and reached a low of 6,469.95 on 6 March 2009, a fall of about 54%. During the week of 6 to 10 October 2008 it lost 1,874.19 points, or 18.2%, the worst weekly decline ever by both points and percentage (en.wikipedia.org/wiki/Stock_market_crash_of_2008).

The sequence matters more than the totals. Funding stress appeared in August 2007, bank rescues followed through spring and summer 2008, and the sharpest price falls arrived in autumn 2008. Lending stress led and prices followed, which makes lending conditions a useful early reading for investors.

Why did the credit crunch of 2007-2008 turn into a stock market crash?

Three channels carried the stress to shares. Banks cut lending, so companies faced higher costs and weaker profit forecasts. Funds that borrowed against assets received calls for collateral and sold shares to meet them. Investors who watched rescues and bankruptcies lost confidence in the system itself, and they moved to cash.

The channels reinforced each other. Lower share prices reduced the value of the collateral behind loans, which tightened credit again. By the autumn of 2008 more than a third of private credit markets had become unavailable as a source of funds (en.wikipedia.org/wiki/Shadow_banking_system), and the stock market crash that followed reflected a market with few buyers and fewer lenders.

What does the 2007-2008 credit crunch teach about stock market crash risk?

Three lessons carry over. First, funding markets stress before share markets do, so interbank rates and lending standards give early warning. Second, a doubt about opaque assets can freeze lending to sound borrowers. Third, rescue events are information: each one changes what lenders expect and raises the cost of credit for others.

As of October 2026, a reader can turn these lessons into a quarterly routine. Record the cost of bank funding, the standards for new loans, and the headlines of rescues or suspensions. Compare each with the previous quarter. A move in all three together has the profile of the sequence that began in August 2007.

How can you test your exposure to a repeat of the 2007-2008 credit crunch?

Ask which of your plans depend on a lender renewing a loan within a year, and how your assets would fare if renewal failed. The EQOS Asia Λ simulator estimates the structural score of your case in 10 minutes and compares a soft landing, a correction, and a crash. This page is general information, not investment advice.

For a decision in Singapore, ASEAN, or Hong Kong, the EQOS Asia contact page books a 30-minute conversation that applies the same scoring to your funding. The method page explains how the score is built, so you can recompute it. A written plan for a lending freeze gives you time to choose.

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About the author

Stéphane Jambu

President, EQOS Forecast Asia

Stéphane Jambu leads EQOS Forecast Asia and works as a consultant in e-commerce, search visibility, and AI. LinkedIn profile