Because there are some seasonal changes in the supply and demand level of commodities, that is, with the change of seasons, the trend of increasing or decreasing the supply or demand of commodities is relatively fixed, and the prices of these commodities also fluctuate seasonally, which we call seasonal fluctuations. As far as agricultural products are concerned, they are usually sown in a specific season of the year and harvested in another season after maturity. This cyclical growth cycle makes agricultural products have more obvious seasonal fluctuations than basic metals or chemicals. Investors often refer to the seasonal fluctuation law when judging the price trend of agricultural products. However, in recent years, the financial attribute of commodity market has been continuously enhanced, and the stability of seasonal fluctuation law of agricultural product prices is weakening. Investors and researchers of related varieties need to analyze the current supply and demand situation more flexibly and carefully on the basis of proper reference to the historical price law of agricultural products in order to adapt to the increasingly complex and changeable market environment.

Seasonal fluctuation law of corn price

1 1- 1, the base price of corn futures is on the rise, and the futures price is on the decline from April to July, mainly because the feed demand is in the off-season. With the gradual tightening of corn fundamentals in China, the market trend has changed significantly since 2009. 10-2 The price of corn futures basically rose, the time span was obviously relaxed, and it was adjusted downward from April to June. In July, the weak market in previous years was changed, and futures prices began to rise, indicating that the demand for corn increased greatly, and the corn remained strong as a whole from July to September.

The seasonal fluctuation law of CBOT corn price Generally speaking, the spot price of corn in the Gulf of Mexico port in the United States reaches the lowest point in September and 10 every year, then rises month by month, reaches the highest price in May every year, and then begins to fall back. Spot prices in central Illinois are basically the same as those in the Gulf. Every year, 10 bottomed out and began to rise, reaching the highest price around May, and then began to fall back. Combined with the growth period of corn, the spot price of corn is at the lowest level in the harvest period, while the price of corn is at the highest level in the corn sowing season every year.