3000 points or 6000 points refers to the Shanghai Stock Exchange Composite Weighted Index, which reflects the comprehensive index of large-cap stocks.

The Shanghai Composite Index was announced by the Shanghai Stock Exchange in 1991. It is measured in "points". The base day is December 19, 1990, and the base day index is set at 100. Later, the Shanghai A-share and B-share indices were added to reflect the respective trends of different stocks. There are also Shanghai Stock Exchange sub-indexes, namely industrial index, commercial index, real estate index, public utility index, etc. to reflect the respective trends of stocks in different industries. What people refer to as the "big market" now largely refers to the Shanghai Composite Index.