1. At present, the first batch of science and technology innovation board funds that have passed the subscription time are mostly closed and cannot be traded. The specific reopening time can be paid attention to the official notice of the Shanghai Stock Exchange;

2. Sector funds refer to single industry funds or specific target funds: single industry funds only invest in specific industries or stocks, such as medical care, high technology, leisure, public utilities, precious metals, etc., and the risks are relatively high because they only invest in specific industries.