After Donald Trump's victory in the presidential election, the shares of his company Trump Media & Technology Group rose sharply, adding almost $300 million to his fortune. Shares of the company rose 8% on Wednesday to nearly $37 a share, and topped the $40 mark in premarket trading, according to Forbes.

In total, Trump owns approximately 57% of Trump Media, which is about 114.75 million shares. Over the last day, their market value rose by $290 million, reaching $4.1 billion. The gains followed a volatile trading day on Tuesday, which saw the stock initially rise 18.6% to $40.74 before falling slightly.

Despite the positive results, the company suffered a loss of $19.2 million in the third quarter of this year, and its revenue decreased by 5.6% compared to last year. However, Trump Media shares rose 119% in October to $54.68, the highest price since June.

According to Forbes, Trump's total net worth is now $6.3 billion. While his fortune has fluctuated in recent months, Trump Media's sharp rise in its stock has brought it close to $8 billion, the highest since the company went public in March.

Shares of Trump Media have seen significant volatility during Trump's presidential campaign. After their initial IPO, the reverse merger saw their value rise to $10 billion, but then plummeted, making it difficult for big investors, including Trump himself, to sell shares.

In recent weeks, amid optimistic predictions about the election, the company's shares have once again shown a sharp rise, strengthening Trump's position as one of the key players in the media space.