Recently, a Japanese trader aged 88 has gone viral. This old man traded stocks for a lifetime and made 2 billion yen (84 million yuan), and he has been anything but stingy in teaching eight “iron laws” of the market that he summarized from years of hard-won, blood-and-tears real-world trading practice:

1. If the market drops rapidly in the morning, it’s suitable for buying; if it rises in a straight line in the morning, it’s suitable for selling.
2. Don’t chase a surge in the afternoon; if the market falls sharply in the afternoon, wait until the next morning and look for an opportunity to enter then.
3.