The price of special optical fibers has skyrocketed by 10 times, and the leading concept stocks have been snapped up by margin traders.

According to CCTV Finance, in early May, a fiber optic production enterprise in Nantong, Jiangsu Province, saw the shipping price of its special optical fiber product (G.657.A2 optical fiber) increase tenfold within a year, yet the supply still couldn't meet the demand. The orders increased fourfold year-on-year, and customers had to pay a deposit in advance to secure the factory's production capacity. According to the statistics of Data Treasure, there are less than 20 companies involved in the optical fiber industry in the A-share market. As of May 15, the year-to-date increases of Yangtze Optical Fiber and Cable Co., Ltd., Hengtong Optic-Electric Co., Ltd., and Zhongtian Technologies Co., Ltd. have all more than doubled. In terms of capital flow, according to the statistics of Data Treasure, as of the close on May 15, there were 7 optical fiber concept stocks with a net margin trading purchase of over 100 million yuan since May, namely Zhongtian Technologies Co., Ltd., Hengtong Optic-Electric Co., Ltd., Yongding Co., Ltd., Tongding Interconnect Co., Ltd., FiberHome Technologies Group Co., Ltd., Yangtze Optical Fiber and Cable Co., Ltd., and Tongguang Cable Co., Ltd. Zhongtian Technologies Co., Ltd. had the highest net margin trading purchase of 2.214 billion yuan since May. (Securities Times)