ChangXin Technology said its over-allotment option (extra shares offered to meet demand) for its initial public offering and STAR Market listing was fully exercised. The move resulted in 1.003 billion newly issued shares, increasing total share capital to 67.884 billion shares. Because the stock traded above its 8.66 yuan-per-share offering price throughout the exercise period, CICC, the authorized joint lead underwriter, did not use funds obtained through the option to purchase the shares in the secondary market through competitive bidding.