Treasury Security
Debt issued by the U.S. federal government through the Treasury Department — the benchmark risk-free asset in global finance.
Treasury securities are bonds issued by the U.S. Department of the Treasury to fund government operations. Because they are backed by the full faith and credit of the U.S. government, they are considered the safest possible dollar-denominated asset and serve as the benchmark risk-free rate for all other pricing.
They come in three maturities: T-Bills (≤52 weeks), T-Notes (2–10 years), and T-Bonds (20–30 years). Yields on these instruments are the foundation of global financial pricing — mortgage rates, corporate spreads, equity discount rates, and emerging market risk premiums are all quoted as spreads over Treasuries.
When risk assets sell off, money often flows into Treasuries (flight to safety), driving yields lower and prices higher.
Related Terms
Bid-to-Cover Ratio
Total bids received at a Treasury auction divided by the amount sold — a key gauge of demand strength for government debt.
AdvancedBond Yield
The return an investor earns by holding a bond — driven by its price, coupon, and time to maturity. Moves inversely with price.
BeginnerCredit Spread
The yield difference between a corporate (or other non-government) bond and a Treasury of the same maturity — the market's price for credit risk.
IntermediateOn-the-Run vs Off-the-Run
On-the-run is the most recently auctioned, most liquid Treasury at each maturity; off-the-run are older issues that trade at a slightly higher yield.
AdvancedPrimary Dealer
An elite bank or broker-dealer authorized to trade directly with the Fed and required to participate in every Treasury auction.
AdvancedRepo
A repurchase agreement — a short-term (often overnight) collateralized loan where securities are sold and agreed to be repurchased, serving as the plumbing of money markets.
AdvancedT-Bill
Short-term U.S. Treasury debt maturing in 4, 8, 13, 26, or 52 weeks, sold at a discount to face value rather than paying coupon interest.
BeginnerT-Bond
Long-term U.S. Treasury debt with 20- or 30-year maturities — the most sensitive to interest rate changes among Treasuries.
IntermediateT-Note
U.S. Treasury notes with maturities of 2, 3, 5, 7, or 10 years, paying semi-annual coupon interest — the most widely traded government securities.
IntermediateTIPS
U.S. Treasury bonds whose principal adjusts with CPI, so the investor is repaid in inflation-protected dollars and earns a real yield.
IntermediateTreasury Auction
The regular process by which the U.S. government sells new Treasury securities to investors via competitive and non-competitive bidding.
Intermediate