When the U.S. Securities and Exchange Commission announced Friday that it had filed a fraud action against Goldman Sachs Group Inc. (NYSE: GS), the news hit the financial markets like a carefully targeted bomb.

The Goldman Sachs fraud case, which relates to the investment bank’s subprime-mortgage business, caused the financial giant’s shares to nosedive 12.8%. The fallout spread to the broader markets, too, causing the Dow Jones Industrial Average to drop 1.1% and the Standard & Poor’s 500 Index to skid 1.6%.

That reaction wasn’t overblown.

Depending on how rough the SEC wants to play it, the case has the potential to shut down the cartel known as Wall Street. It could even jump-start the kind of sweeping overhaul that legal or regulatory reformists have so far failed to launch.

How the Goldman Sachs Fraud Case Could Accelerate Wall Street Reform

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