Young people who are drawn to Yi Zhongtian
"As I've always said, time will prove the value of optical modules and computing power."
The Douyin blogger "Li Yien" has found the secret to getting more views. Before commenting on the stock market every day, he always shouts a slogan.
After shouting for more than a year, the number of likes on his short videos has increased from a few thousand to tens of thousands. Netizens who want to make money flocked to the comment section, asking the master for advice. Some asked about the trend of their held stocks, while others worried if it was too late to "stand in the light" now.
"You should stand in the light, not just stand there" is a pun that investors are currently joking about. The rapid development of AI has led to an explosion in the demand for computing power. Optical modules, which are at the upstream of the industrial chain, are an indispensable part of the computing power infrastructure.
The three leading companies in the optical module industry, Xinyisheng, Zhongji Xuchuang, and Tianfu Communication, have seen particularly sharp increases in their stock prices. By taking one character from each of these three stocks, investors have combined them to form the term "Yizhongtian."
Since the low point in April 2025, Xinyisheng's stock price has increased by 16 times, Zhongji Xuchuang's by 17 times, and Tianfu Communication's by 10 times. Those who bought "Yizhongtian" stocks early have made a fortune.
Among those who have made a fortune is the Snowball user "Yang Shuang 511." At the beginning of 2023, when ChatGPT became popular, he smelled an opportunity. He chose optical modules among a variety of AI stocks and built positions in Xinyisheng and Zhongji Xuchuang.
His logic is that in the previous Internet revolution, the first to benefit were the hardware infrastructure. This time, the AI wave should be no exception. Xinyisheng and Zhongji Xuchuang are leading companies, with financial data far ahead of their peers and pure business models.
He thought his short - term trading skills were not good enough, so he gave up short - term trading and held the stocks for the long term. Over the past three years, disputes over the CPO route, doubts about computing power demand caused by DeepSeek, and the tariff war have all led to multiple corrections in stock prices. But Yang Shuang 511 judged that these factors could not shake the fundamentals of optical modules, and he held on.
Calculated by the adjusted price, his purchase costs were about 11 yuan and 55 yuan respectively. As of now, one of the two stocks has increased by about 50 times, and the other by about 20 times.
Yuan Yi from Beijing, who has been trading stocks for nearly 15 years, also made a profit from "Yizhongtian."
In 2024, when NVIDIA's stock price was continuously rising, he checked NVIDIA's suppliers and noticed Zhongji Xuchuang. But he thought the timing was not right and did nothing.
Since July 2025, Zhongji Xuchuang's stock price has soared, rising from 139 yuan to 400 yuan. Yuan Yi was tempted but dared not buy. A few months later, when Zhongji Xuchuang's stock price suddenly dropped from the highest of 456 yuan, he seized the opportunity and bought at a price of more than 300 yuan.
Yuan Yi believes that as long as the demand for AI still exists and AI infrastructure is still growing, "Yizhongtian" still has potential. Sure enough, after he entered the market, Zhongji Xuchuang's stock price continued to rise.
In April this year, after Zhongji Xuchuang's stock price exceeded 700 yuan, Yuan Yi reduced his position by half and got back his principal. The remaining half of the position is all profit, it's just a matter of how much to earn.
Picture | Yuan Yi's Zhongji Xuchuang stocks have multiplied several times.
Stories of making money are repeatedly told online. Young people who want to share the dividends of the era are flocking to the "light."
However, the "light" is not cheap. At the current stock prices, buying one lot (100 shares) of each of the "Yizhongtian" stocks requires an investment of more than 200,000 yuan, which is out of reach for many people.
But young people can also "borrow the light" by buying CPO sector funds that include optical module stocks such as "Yizhongtian" and stand in the "light" together. On Alipay, you can start with as little as 10 yuan, which has attracted many young people and novices who have never been exposed to financial management.
Pi Dan from Hubei quit his job at an Internet company and became a freelance skiing coach. With fewer classes in summer, he wanted to earn more money and tried financial management for the first time. After buying various funds randomly on Alipay, Pi Dan found that the CPO sector funds performed extremely well: when other funds were falling, they were rising; when other funds were rising slightly, they were rising sharply.
Pi Dan began to learn about fund financial management knowledge online, followed several real - trading bloggers, and referred to their operations every day. The more he learned, the more convinced he was that the CPO market was booming. So he started with a trial investment of 2,000 yuan and gradually increased his position to more than 60,000 yuan. His first - month return was 2,600 yuan.
There are many young people like Pi Dan who are attracted by the low threshold. Shi Mengdi, a girl from Beijing with a stable income, often heard people talking about CPO in her friends' chat groups. Two weeks ago, she also followed the trend and spent more than 20,000 yuan to buy CPO funds.
Since June, the funds have been very volatile. Staring at the fluctuating numbers every day has become Shi Mengdi's "thrilling" daily routine.
Picture | The CPO funds bought by Shi Mengdi are like a roller - coaster every day.
Since her account has always been in profit, Shi Mengdi is not panicked about the fluctuations. She also introduced the fund - making method to her cousin who works in Shenzhen.
Seeing his cousin's fund returns fluctuating in thousands, the cousin sighed, "How can I be in the mood to work?" and asked, "Is it a good time to get in now?"
This recommendation between Shi Mengdi and her cousin is a microcosm of the spread of this market: Old stock investors tell new fund investors, and new fund investors tell those who haven't opened an account. The FOMO sentiment is passed on one by one.
Each round of the A - share market that creates wealth has its own catchphrases. From "Never sell even if you die," "China Shenche," "Everything can be Maotai," to "Ningwang," "Diwang," "China Special Valuation," now it's "Laodeng stocks," "Yizhongtian," and "Stand in the light."
The function of these catchphrases has never changed. They simplify the fundamental analysis and risk - return ratio that should be deeply studied into a simple judgment, quietly influencing the investment decisions of countless people.
The sharp rise of "Yizhongtian" has lasted for more than a year. The regret is not only for those who entered the market late but also for those who sold their stocks early after a small increase.
Experienced stock investors are used to big ups and downs and have a relatively calm mindset. However, when facing a market that doubles and doubles again, not everyone can hold on to their stocks.
There is a post on Snowball asking the big shots who hold heavy positions in "Yizhongtian" what their logic is for holding on. There are thousands of comments in the comment section.
Besides serious analysis, some people say it requires talent and is determined by genes; some say personality is more important; some say understanding human nature is more important than understanding the industry.
Some people also say, "Because they believe in the light, have light in their eyes, and have faith. While you don't have the light and don't believe in faith. You only believe in your own logic, so you can't hold on."
When it comes to faith, the Douyin blogger "Hakimi is a little crazy" is not short of it. He once went all - in on Xiaomi at a high price of more than 40 yuan and now has a loss of more than 1.8 million yuan.
On June 2nd, he started to move most of his positions to the "light." He said, "As long as I get my money back, I'll close my account and leave." After making some money following the market for two days, Hakimi's eyes also began to shine.
Picture | Hakimi is a little crazy
On June 5th, "Yizhongtian" stocks tumbled collectively. Zhongji Xuchuang's stock price dropped nearly 8% in a single day. On June 11th, Xinyisheng's stock price almost hit the daily limit down during intraday trading, and the CPO concept started to correct. Those who fled and those who rushed to buy at the bottom completed the handover in the huge trading volume.
When the market is good, only a few people can hold on to their stocks; when the stocks are trapped, more people can hold on.
This article is from the WeChat official account "Zhengu Research Institute." Author: Liang Xiang, Editor: Zhang Duo. Republished by 36Kr with permission.