Qiao Xiaohui and her daughter Shi Wen are called "Niu San" in the A-share capital market. Qiao Xiaohui's husband is a generation of futures tycoon Shi Deyi, who is known as "the richest Chinese in New Zealand". Of course, this is a story more than ten years ago. Qiao Xiaohui and Shi Wen bought 60 million shares of Beiqi Blue Valley at a price of 14 yuan in the second quarter of last year, at least 800 million yuan, with a loss of at least 400 million yuan, and they are still sticking to it.