It means that some investors do not look at the fundamentals of stocks when investing, but blindly rely on so-called inside information to "buy stocks" in the hope of getting rich overnight. Because I hope to get rich, if I have $6,543.8+0,000 in my hand, I may put all my eggs in one basket. Man Cang will buy this insider stock, and sometimes even raise money (leverage, borrow money) to buy it in large quantities. In this case, once the stocks bought plummet, investors may lose all their money.

This sentence warns everyone that investors should try to avoid speculation, especially excessive speculation, when investing in the stock market.