Why is Oct 29, 1929 called Black Tuesday?
In 1928 the price of stock in the Radio Corporation of America (RCA) multiplied by nearly five times. The Dow Jones industrial average industrial average—an index that tracks the stock prices of key industrial companies—doubled in value in less than two years. But the stock boom could not last. The great bull market of the late 1920s was a classic example of a speculative “bubble” scheme, so called because it expands until it bursts. In the fall of 1929 confidence that prices would keep rising faltered, then failed. Starting in late October the market plummeted as investors began selling stocks. On October 29, in the worst day of the panic, stocks lost $10 billion to $15 billion in value. By mid-November almost all of the gains of the previous two years had been wiped out, with losses estimated at $30 billion, hence black Tuesday.