A stock market bubble occurs when the price of assets, like stocks, rise far beyond their intrinsic value, normally because of excessive speculation. While these can make some people huge wealth, they more often than not burst and then cause economic downturns. Here, some of the most famous stock market bubbles, causes, and the events after that are addressed.

One of the earliest recorded bubbles was the Tulip Mania in 17th-century Netherlands. Tulips were a luxury item, and their prices soared as people speculated on their value. At their height, some tulip bulbs were traded for as much as a house. But when prices became unsustainable and buyers dried up, the bubble burst, leaving many with financial losses.
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Another notable example is the South Sea Bubble of 1720 in England. The South Sea Company was granted a monopoly to trade in South America, and speculative investing in its stock drove prices to extreme heights. Promises of massive profits produced a buying frenzy, but panic selling set in when it became clear that earnings of the company were exaggerated; the market crashed, leaving countless investors bankrupt.
Fast forward to the 20th century, and the Roaring Twenties ushered in the U.S. stock market bubble of 1929. Fueled by optimism and easy access to credit, Americans invested heavily in stocks, sending prices to unprecedented levels. When speculation reached unsustainable heights, the market collapsed, marking the beginning of the Great Depression, a global economic crisis that lasted for a decade.

The most typical example from recent history is the Dot-com Bubble of the late 1990s. Rapid growth in Internet-based companies encouraged speculative investment. Many unprofitable businesses, or those with little profit, rushed to go public, and their stocks soared. When investors realized that these companies were overvalued, the bubble popped, wiping out trillions in market value.
The 2008 Housing Crisis also had stock market implications. While based in real estate, the overvaluation of mortgage-backed securities caused a financial collapse, resulting in the Great Recession.
Such stock market bubbles are driven mostly by greed, speculation, and a belief that the prices will just keep on rising. But the aftermath can be devastating, with job losses, bankruptcies, and economic downturns. Remembering their history should remind us to invest with caution and focus on the long-term fundamentals rather than the short-term gains.