美国至4月28日6个月国债竞拍-得标利率配置百分比 20.34%，前值30.34%。

Core Insights - The auction for 6-month U.S. Treasury bills held on April 28 resulted in a winning yield of 20.34%, a decrease from the previous value of 30.34% [1] Summary by Category - Auction Results - The winning yield for the 6-month Treasury bill auction was 20.34% [1] - This represents a significant decline from the prior auction yield of 30.34% [1]