Two, Aier Ophthalmology (300015). The company is located in Changsha, Hunan Province, is mainly engaged in all kinds of ophthalmic disease diagnosis and treatment, surgical services and medical optometry.
The company is a leading domestic ophthalmic hospital chain, from 2017 to 2020, ROE is 21%, 18%, 22%, 21%, respectively, revenue growth is 49%, 34%, 24%, 19%, respectively, and net profit growth is 33%, 35%, 36%, 25%, respectively.
Three, Tigermed (300347). The company is located in Hangzhou, Zhejiang Province, mainly engaged in the development of new drugs to provide professional services for the whole process of clinical trials contract research organization (CRO), for the global pharmaceutical and medical device innovation enterprises to provide comprehensive and integrated clinical research solutions.
Four, OPPCONVision (300595). Located in Hefei City, Anhui Province, the company is mainly engaged in the design, research and development and sales of rigid corneal contact lenses and care products.
The company is a leading domestic OK lens enterprise, from 2017 to 2020, ROE is 21%, 23%, 26%, 28%, respectively, revenue growth is 32%, 47%, 41%, 34%, respectively, net profit growth is 32%, 43%, 41%, 41%, respectively.
The leading stock refers to a certain period in the stock market speculation on other stocks in the same industry sector has the influence and appeal of the stock, its rise and fall is often on the rise and fall of other stocks in the same industry sector to guide and demonstrate.
The leading stock is not static, and its position can often only be maintained for a period of time. The basis for being a leading stock is that any information related to a particular stock is immediately reflected in the stock price. Leading stocks are usually at the end of the end of the decline in the market, the market panic, against the market stops, bottoming out in advance, or start before the market, and withstand a round of decline in the market test.