The size of the funds are relative, relative to the large capital of the large market, may be what you call the stock is big money, generally refers to billions of dollars or more of large institutions, large companies; relative to the general, ordinary, medium liquidity of individual shares of big money, generally refers to hundreds of millions of dollars or more institutions or companies; relative to the small and medium-sized tens of millions of dollars of institutions or large households, even if the big money.

Simply put, it is capable of attracting and driving the flow of funds, prying the market or individual stock quotes can be called big money;

Large money data, generally the exchange or the authority to provide data services for the exchange, through the trading system instantly and automatically collected, analyzed and aggregated, calculated and statistical, only relatively accurate, there will be a difference between the various systems. The first is to make sure that you have a good understanding of the situation.