Mirae Asset Securities has received 2.31 million shares in SpaceX’s initial public offering, joining the underwriting group for the record-setting market debut of Elon Musk’s aerospace company. According to a filing posted on the US Securities and Exchange Commission website Friday, SpaceX allocated 2,314,815 Class A common shares to Mirae Asset Securities out of 555,555,555 shares to be sold in the offering. The shares allocated to Mirae Asset are worth about $312.5 million based on the final o