Weekly Grain Seasonal Review

Thom Hartle – September 30, 2026

Each Wednesday this article will be updated with the current seasonal study using CQG's Seasonal analysis applied to the Soybean, Wheat and Corn markets. You can download the CQG pac providing the studies and charts here. In addition, the seasonal data lines can be pulled into Excel using RTD formulas.

Below each chart are two tables. The first table is the highest correlation of the current market data to the seasonal year using a 20-day, 50-day, 100-day and the 200-day lookback periods. The second table is the previous week's data. Seasonal analysis is about price direction or the trend.

Soybeans

Soybeans

 

This Week's Data    
Correlation Lookback (Days)2050100200
Seasonal Year Back with the Highest Correlation10_Yr                    
26.77
6_Yr                    
89.84
6_Yr                    
86.50
5_Yr                    
54.43
Last Week's Data    
Correlation Lookback (Days)2050100200
Seasonal Year Back with the Highest Correlation2_Yr                    
83.97
6_Yr                    
90.40
6_Yr                    
84.36
5_Yr                    
58.11

Wheat

Wheat

 

This Week's Data    
Correlation Lookback (Days)2050100200
Seasonal Year Back with the Highest Correlation3_Yr                    
57.65
6_Yr                    
56.01
6_Yr                    
68.20
5_Yr                    
69.20
Last Week's Data    
Correlation Lookback (Days)2050100200
Seasonal Year Back with the Highest Correlation5_Yr                    
67.00
6_Yr                    
58.71
6_Yr                    
67.66
5_Yr                    
71.72

Corn

Corn

 

This Week's Data    
Correlation Lookback (Days)2050100200
Seasonal Year Back with the Highest Correlation4_Yr                    
11.17
6_Yr                    
90.00
6_Yr                    
60.16
4_Yr                    
37.34
Last Week's Data    
Correlation Lookback (Days)2050100200
Seasonal Year Back with the Highest Correlation7_Yr                    
30.81
6_Yr                    
89.64
6_Yr                    
54.13
4_Yr                    
39.15

Disclaimer

Trading and investment carry a high level of risk, and CQG, Inc. does not make any recommendations for buying or selling any financial instruments. We offer educational information on ways to use our sophisticated CQG trading tools, but it is up to our customers and other readers to make their own trading and investment decisions or to consult with a registered investment advisor. The opinions expressed here are solely those of the author and do not reflect the opinions of CQG, Inc. or its affiliates.