Bean Seasonals SoyBeans are also moving right along this season. Each contract is worth 5,000 bushels. Anyone out there have any experience trading "SoyBean Seasonal Calendar spreads?" 6/9 Beans has had profits in every single one of the last 15 years. Now sixteen consecutive years. Margin at the time of this trade was $473 per spread. Profits are up over $1,800.00 per spread during the Seasonal Window. Can you see how far away we had to keep our stops to catch this yearâs Seasonal trend? Again, the big profits are in the long-term trend.