By Noel Randewich

(Reuters) - Shares of Trump Media & Technology Group (DJT), majority-owned by former U.S. President Donald Trump, surged for a second day on Tuesday ahead of a debate between the Republican presidential candidate and Vice President Kamala Harris.

The stock jumped over 4% and lifted the value of Trump's stake in the company to $2.2 billion days before he and other insiders will be allowed to sell their shares for the first time since the company's public listing in March.

Trump and Democratic candidate Harris meet for the first time on Tuesday night in their only scheduled debate, a clash that could prove pivotal in their neck-and-neck race for the White House.

Including gains on Monday, the stock is up about 11% this week.