Cotton futures are 5 tons in one hand, and the funds required for investors to trade cotton in one hand = current price of cotton futures × number of transactions × margin ratio. For example, when the cotton futures price is 20,000 yuan and the margin is 10%, the funds required by investors = 20,000× 5×10% = 65,438.

At the same time, the trading hours of cotton futures are Monday to Friday (except holidays) at 9: 00- 10: 15,10: 30-1:30; In the afternoon 13: 30- 15: 00 and in the evening, 2 1: 00-23: 00.