Wu said that the chart produced by Two Prime pointed out that the growth period of global broad money M2 is closely related to the rise of BTC price, while the decline period of M2 corresponds to the decline of price. The Pearson correlation coefficient can be derived, and the correlation value of the two data sets is found to be 0.854, which is very highly correlated. The three main contributors to M2 liquidity include US dollar liquidity, Chinese people's bank liquidity and bond volatility.