The New York Stock Exchange closing bell rang as markets watched SpaceX's planned record initial public offering. The Elon Musk-led rocket and satellite company is seeking a valuation of around $1.76 trillion, with plans to sell 555,555,555 shares at an initial price of $135 each. If completed, the IPO could raise about $75 billion, potentially shattering the record set by Saudi Aramco in 2019.