中国3月减持美债189亿美元，债务危机损害美债信用

Group 1: U.S. Treasury Securities and Foreign Holdings - In March, China's holdings of U.S. Treasury securities decreased by $18.9 billion to $765.4 billion, continuing a trend of holding below $1 trillion since April 2022 [2] - China reduced its long-term U.S. Treasury holdings by $27.6 billion in March, becoming the third-largest holder of U.S. debt [3] - Japan's holdings of U.S. Treasury securities increased by $4.9 billion in March, reaching $1.1308 trillion, maintaining its position as the largest foreign holder [3] Group 2: Credit Rating Downgrades - Moody's downgraded the U.S. credit rating from "Aaa" to "Aa1" due to rising debt and interest payment growth rates exceeding those of similarly rated sovereign nations [4] - Moody's was the last major agency to maintain the U.S. sovereign debt's AAA rating, citing a lack of consensus among U.S. governments to address fiscal deficits [4][5] - Other rating agencies, including Fitch and S&P, have previously downgraded the U.S. rating due to fiscal deterioration and debt ceiling negotiations [5] Group 3: Trade Policies and Economic Impact - In April, Trump initiated a global trade war, which is seen as a strategy to address the U.S. debt crisis, with negotiations yielding significant tariff reductions [6] - The U.S. budget surplus in April reached $258 billion, the second-highest on record, driven by increased tariff revenues and strong tax collections [7] - The U.S. has seen a 6.90% depreciation of the dollar this year, leading to an increase in foreign exchange reserves, with expectations of continued diversification in reserve investments [7]