When the net value of graded fund B is lower than a certain agreed value (generally 0.25), the discount is triggered, and the net value returns to 1 after the discount, and the share decreases accordingly.

When the net value of graded fund B is higher than a certain agreed value (generally 1.5), it will trigger a discount, and the net value will return to 1 after the discount, and the share will increase accordingly.

Therefore, the net value of graded funds generally does not exceed 2.