进出口行发行3年期债券，规模40亿元，发行利率1.4000%，预期1.5200%，投标倍数4.22倍，边际倍数1.29倍。

Group 1 - The company issued a 3-year bond with a total scale of 4 billion yuan [1] - The issuance interest rate was set at 1.4000%, with an expected rate of 1.5200% [1] - The bid-to-cover ratio was 4.22 times, indicating strong demand for the bond [1] - The marginal bid-to-cover ratio was 1.29 times, reflecting competitive bidding [1]