U.S. Treasury securities — bills, notes, bonds, and inflation-protected securities (TIPS) — are debt obligations of the federal government, backed by the full faith and credit of the United States. The Treasury market is the largest and most liquid government securities market in the world, serving as the global benchmark for risk-free interest rates and the foundation upon which credit spreads across all other fixed-income markets are measured.
Treasury securities are issued through regularly scheduled auctions managed by the Bureau of the Fiscal Service. Primary dealers — a select group of banks and securities firms designated by the Federal Reserve Bank of New York — are obligated to bid at each Treasury auction and to make markets in Treasury securities in the secondary market. The auction process determines the yield at which each security clears, establishing market rates across the yield curve.
The Treasury yield curve — the relationship between yields and maturity across Treasury securities — is one of the most closely watched indicators in financial markets. An inverted yield curve (short-term yields exceeding long-term yields) has historically preceded recessions and is interpreted as a signal of market expectations for future rate declines. The Federal Reserve H.15 statistical release publishes daily Treasury yield curve data.
For credit analysts, Treasuries serve as the risk-free baseline against which credit spreads are measured. The option-adjusted spread (OAS) on a corporate or structured finance security represents the additional yield over a comparable Treasury, adjusted for embedded optionality. Changes in Treasury yields affect the absolute financing costs of all fixed-rate borrowers.
Sources: U.S. Treasury Bureau of the Fiscal Service; Federal Reserve H.15; Federal Reserve Bank of New York Primary Dealer Program.