国开行发行1年期债券，规模80亿元，发行利率1.4858%，预期1.4700%，投标倍数3.05倍，边际倍数5.53倍；国开行发行5年期债券，规模150亿元，发行利率1.5327%，预期1.5400%，投标倍数2.41倍；国开行发行10年期债券，规模190亿元，发行利率1.6246%，预期1.6400%，投标倍数2.88倍，边际倍数1.27倍。

Core Viewpoint - The China Development Bank (CDB) successfully issued bonds of varying maturities, indicating strong market demand and favorable interest rates for government-backed securities [1] Group 1: Bond Issuance Details - CDB issued a 1-year bond with a scale of 8 billion yuan, an issuance rate of 1.4858%, and a bid-to-cover ratio of 3.05 times, with a marginal ratio of 5.53 times [1] - CDB issued a 5-year bond with a scale of 15 billion yuan, an issuance rate of 1.5327%, and a bid-to-cover ratio of 2.41 times [1] - CDB issued a 10-year bond with a scale of 19 billion yuan, an issuance rate of 1.6246%, and a bid-to-cover ratio of 2.88 times, with a marginal ratio of 1.27 times [1]