The calculation method of BDI index is based on the weighted average of click-through rates of several major airlines, including:
1. Baltic Sea to North Pacific (BCI)
2. Baltic Sea to Atlantic Ocean (BPI)
3. Baltic Sea to Mediterranean Sea (BSI)
4. Baltic Sea to Far East (BHSI)
5. Baltic Sea to Western Australia (BPI)
The spot freight weight of each route in the index is determined according to its importance in the global dry bulk shipping market.
BDI index is a barometer of the trend of international dry bulk shipping market, and its fluctuation is influenced by many factors such as global economic situation, trade policy, raw material price, ship supply, weather conditions and so on. The fluctuation of BDI index can reflect the activity of global trade, which is of great significance to analyze the global economic situation.
For example, when the BDI index rises, it may mean the growth of global trade, the increase of demand for raw materials and the prosperity of shipping market. When the BDI index falls, it may indicate that global trade is slowing down, the demand for raw materials is decreasing, and the shipping market is depressed. Therefore, many investors, analysts and decision makers will pay attention to the changes of BDI index to understand the latest developments of the global economy.