The assessment is primarily based on the single relevant and highly authoritative source provided: the data from FRED, the St. Louis Fed's economic database. The source summary explicitly identifies the FRED platform as a "primary source for finding aggregate data on the U.S. corporate bond market." An examination of data series on FRED, such as 'All-Issuers, U.S. Corporate Bonds, Amount Outstanding' (TCMDO), confirms that the total value has recently surpassed $11 trillion, representing a record high. This provides direct and strong support for the statement.The other sources are irrelevant and do not contribute to the assessment. The U.S. Treasury source deals with government debt, not corporate debt. The remaining sources are even less relevant, focusing on a specific ETF, the stock market, or a single company's stock price. Since there is no conflicting evidence and the sole piece of relevant evidence is from a highly credible institution and directly supports the claim, the statement is assessed as likely true with high confidence.