In the future, the company will buy corn in the real market, so the futures market will buy futures first to replace the buying behavior in the real market (it is inconvenient to buy in the real market and needs inventory preservation). Futures buy 200 lots 10 contract, one lot 10 tons, 2000 tons =200 lots. Hold your horses, and when September arrives, sell the futures.

Basis = spot price-futures price. Basis in June = 3300-3 150 = 150, and basis in September =3600-3550=60.

Futures market: I bought 3 150 and sold it at 3,550, so I earned (3,550-3150) * 2,000 tons = 800,000 yuan.

Spot market: I bought it at 3600 instead of 3300, and lost money. Loss (3600-3300)*2000 tons =600000 yuan.

Generally speaking, it is profitable, with profit = 800,000-600,000 = 200,000.