Affected by the fluctuation of peripheral markets and other factors, the main stock indexes of the A-share market fluctuated and fell on March 15, and the main contracts of the three major varieties of stock index futures of China financial futures exchange were fully discounted at the close. Among them, the discount ranges of if2203, ih2203 and ic2203 are 42.4 points, 24.3 points and 62 points respectively, and the discount ranges are about 1%.