This means that the rise and fall of the Nasdaq index is influenced by the rise and fall of its constituent stocks and their weights, that is, when its constituent stocks generally rise, the Nasdaq index may rise, and when its constituent stocks generally fall, the Nasdaq index may fall; Super-large-cap stocks have great influence on the index, while small-cap stocks have little influence on the index.
At the same time, investors can operate stocks according to the Nasdaq index. When the Nasdaq index rises, investors can do more moderately. When the Nasdaq index falls, investors can short or wait and see.