Shares of Trump Media (DJT 11.50%) are seeing big gains in Thursday's trading. The stock price was up 11.3% as of 3:30 p.m. ET today. It had been up as much as 15.3% earlier in the day.Trump Media is getting a valuation boost following news that the company has requested that the Securities and Exchange Commission (SEC) look into alleged manipulation of its stock. Despite today's gains, the share price is still down 34% amid the backdrop of a 10% decline for the S&P 500 index. Trump Media stock rises after ...