If investors expect the market interest rate to drop, or expect the bond yield to drop within a certain period of validity, the interest rate futures price will rise, then they can choose to make multiple strategies and buy interest rate futures contracts, expecting the futures price to rise and make a profit. If investors expect the market interest rate to rise or the bond yield to rise, the interest rate futures price will fall, then they can choose the short strategy and sell the interest rate futures contract, expecting the futures price to fall and make a profit.