According to the Zhichun Finance APP, since Donald Trump won the USA election last month, Elon Musk's wealth has surged, making him the first person with a net worth reaching 400 billion dollars, which is the latest milestone for the world's richest person.

The recent catalyst was the internal stock sale of Musk's Space Exploration Technologies Corp, which, according to the Bloomberg Billionaires Index, increased Musk's net worth by about 50 billion dollars. The stock price of Tesla (TSLA.US) also reached an all-time high on Wednesday, bringing Musk's wealth to 447 billion dollars.

According to the Bloomberg Billionaires Index, Musk's wealth increased by 62.8 billion dollars in a single day, marking the largest single-day increase ever, and helping to push the total wealth of the world's 500 richest people to exceed 10 trillion dollars for the first time. Data compiled by the World Bank shows that the net worth of these individuals is equivalent to the combined GDP of Germany, Japan, and Australia last year.

Since the beginning of 2024, Musk's net worth has increased by about 218 billion dollars, surpassing any other member of the world's 500 richest people. The stock price of Tesla is the main source of Musk's wealth, which has risen by 71% this year, closing at 424.77 dollars on Wednesday, marking the first all-time high since 2021.

The increase in Tesla's stock price has been boosted by multiple bullish news. Sales data shows that Tesla had a "good start" in December sales in China: cumulative sales reached 0.0219 million electric vehicles in the first week, setting the highest weekly auto sales since the fourth quarter of 2024.

At the same time, Tesla has been frequently releasing updates on the development of its humanoid robots. Tesla CEO Musk has been telling Shareholders that Optimus represents a multi-trillion-dollar opportunity for the company. Analysts, including Bank of America Analyst John Murphy and Citi Global Insights Analyst Wenyan Fei, are Bullish on the Optimus Business, with Fei even boldly predicting that by 2050, the market size for humanoid robots is expected to reach a staggering 7 trillion dollars.

The outside world expects that Trump will simplify the rollout process for self-driving cars and eliminate tax credits that benefit competitors of Tesla, which will help boost Tesla's stock price. Musk will also play a key role in the new Trump administration as the co-minister of the newly established Office of Government Efficiency. This gives Musk significant influence in Washington and allows him to communicate directly with the White House.

Additionally, the value of Musk's AI venture xAI has more than doubled since the last funding round in May, reaching $50 billion. Reports suggest that Trump's victory has sparked investor interest in xAI.

On Wednesday, SpaceX and its investors agreed to buy $1.25 billion worth of shares from employees and other insiders. This deal values the space exploration company at approximately $350 billion, making SpaceX the most valuable private venture in the world.

Most of the company's revenue comes from contracts with the USA government, and under Trump's administration, the company may receive additional support. Trump praised Musk's vision of sending astronauts to Mars in campaign speeches and attended a SpaceX launch event in Texas shortly after the election.

Last week, 53-year-old Musk received bad news: a Delaware judge rejected Musk's 2018 Tesla compensation plan for the second time, currently valued at over $100 billion. Tesla stated that it will appeal this ruling, and Musk called it 'absolutely corrupt.' Even if Musk's pay is ultimately reclaimed, he will still be the richest person in the world.