CRB index refers to the abbreviation of Commodity Research Bureau (Commodity Research Bureau), which is an index that reflects the trend of the international commodity market. It is compiled by the Commodity Research Bureau (CRB) and mainly includes the price movements of various commodities such as agricultural products, energy, and metals.

The CRB index is calculated by weighting the prices of various types of commodities, with different weights for different categories. The weight mainly considers factors such as market demand, trading volume and influence of the commodity. At the end of each month, the CRB Index will publish changes for the month and year-to-date.

As an important indicator to measure the overall trend of the global commodity market, CRB index has certain reference value for various industries, institutions and investors. Investors can use the CRB index to judge changes in the global economic cycle and understand the volatility trend of commodity prices so that they can make corresponding investment decisions. For example, when the CRB index rises, it may indicate increased demand for goods, accelerated economic growth, or increased inflation; When the CRB index falls, it may indicate a decline in demand, an economic slowdown or deflation.

In general, the CRB index is an important indicator reflecting the trend of the global commodity market, and through the weighted average calculation of various commodity prices, it can provide valuable reference information to help investors judge changes in the economic cycle and make investment decisions.