A-shares rose across the board yesterday, with the Shanghai Stock Exchange Index hitting a new high in the past decade, reaching a maximum of 3,745.94 points. Internet celebrity math teacher Li Yongle posted on Weibo, saying "The Shanghai Stock Exchange Index reached a new high in ten years. I bought the fund within five years and still lost money. It’s interesting. It’s really interesting.”, which resonated with many netizens.

Li Yongle won the national physics competition championship in high school and was recommended to enter the Physics Department of Peking University. Later, he was admitted to the Department of Electronic Engineering of Tsinghua University to pursue a graduate degree, and he was called the double academic master of Tsinghua University and Peking University.

In 2018, Li Yongle began to publish popular science videos for the public, using mathematics to reveal the mysteries of real life. For example, the winning rate of the 220 million lottery jackpot is only 1/40,000, and 220 cups of sauce latte can extract a bottle of Feitian Moutai, etc.

Netizens joked that it seems that no matter how good you are in mathematics, physics and chemistry, you can’t study fund stocks thoroughly.

In the comment area of ​​Weibo, a large number of netizens left messages with "experiences": Some netizens said that the fund they bought at 3,500 points is now more than 3,700 points, and the result is still a loss of 20 to 30%.

Some netizens joked, "Why don't we call them financial consumers?"

Li Yongle’s complaints this time not only reflect the true voice of ordinary investors, but also reveal from the side that fund investment is not a “guaranteed profit”. Even when the index is improving, you still need to choose carefully, make rational judgments, and avoid blindly following the trend.