Yield curve explained: what it tells you

The yield curve is one of the most-watched signals in finance, and one of the most misunderstood. It is a chart that plots the interest rates on U.S. Treasury securities against their maturities, from 3-month bills to 30-year bonds. When the curve bends or inverts, it is telling you something about where bond investors think rates and growth are headed. Here is how to read it.

What the yield curve is

A U.S. Treasury security is a loan to the federal government. The yield is the annualized return the buyer receives for holding it to maturity. Treasury securities are issued at different maturities: 3-month, 6-month, 1-year, 2-year, 5-year, 10-year, and 30-year, among others.

The yield curve plots all of these yields on a single chart: the horizontal axis shows time to maturity; the vertical axis shows the yield. Connect the dots across maturities and you get the curve.

Treasury yields matter beyond government borrowing. The 10-year Treasury yield is one of the most widely used benchmarks in finance. Mortgage rates, corporate bond rates, and many other rates are priced relative to the 10-year. When the 10-year moves, borrowing costs across the economy tend to follow. See how bonds work for the mechanics of bond yields and prices.

The live yield curve is published daily by the U.S. Treasury at home.treasury.gov and is tracked on FRED at fred.stlouisfed.org. As of July 2026, check those sources for the current shape.

What a normal curve looks like

In normal conditions, the yield curve slopes upward: a 3-month Treasury yields less than a 2-year, which yields less than a 10-year, which yields less than a 30-year.

Why: investors who lend money for longer periods face more uncertainty, more inflation risk, and a longer wait for their money back. They demand higher compensation. A 30-year Treasury buyer needs to be paid more than a 3-month buyer to justify the commitment.

An upward-sloping curve reflects a normal state: near-term conditions are expected to be stable, and the economy is expected to grow over time. This is the baseline you measure all deviations from.

What an inverted curve means

An inverted yield curve is when short-term yields rise above long-term yields. The most watched versions: the 2-year Treasury yielding more than the 10-year, and the 3-month yielding more than the 10-year.

The mechanism: when the Federal Reserve raises short-term rates aggressively (see how interest rates affect the economy), short-term Treasury yields rise quickly to match. At the same time, investors buy long-term Treasuries because they expect the economy to slow and the Fed to eventually cut rates. This buying pushes long-term yields down, even as short-term yields rise. The result is an inverted curve.

The inversion reflects what bond market participants collectively expect: slower growth ahead, followed by rate cuts. It is not a policy decision or a prediction by any single party. It is a signal embedded in market prices.

Why inversion is watched as a recession signal, and the honest caveat

Every U.S. recession in recent decades has been preceded by an inverted yield curve. The Federal Reserve Bank of New York publishes a recession probability model based on the 3-month/10-year spread; it is updated monthly and available at newyorkfed.org.

The honest caveats:

The lead time varies. Inversion has preceded recession by anywhere from 6 to 24 months historically. A curve that inverts today does not mean a recession is imminent.
Not every inversion has produced a recession. The track record is strong but not perfect.
Quantitative easing can distort the signal. When the Fed buys long-term Treasuries, it artificially suppresses long-term yields, which can flatten or invert the curve without the usual economic meaning.

State it accurately: an inverted yield curve is a historically significant leading indicator, tracked carefully by the Fed and professional investors. It is not a guarantee, and it is not a precise timing tool.

Historical note: the yield curve (2-year/10-year spread) inverted sharply during the 2022-2023 hiking cycle, with 2-year yields exceeding 10-year yields by more than a percentage point at the peak. That inversion, and its relationship to subsequent economic conditions, is one of the most discussed examples in recent memory.

What a flat curve means

A flat curve is when short and long yields are close together. It is often a transitional state, seen as a normal curve moves toward inversion, or as an inverted curve recovers toward normal. On its own, a flat curve does not carry a strong directional signal. Context matters: is it flattening from above (moving toward inversion) or steepening from below (recovering)?

How to read the curve yourself

The two spreads most commonly tracked:

10-year minus 2-year Treasury yield. The most widely quoted by markets and financial media. When this number is negative, the curve is inverted on that segment.
10-year minus 3-month Treasury yield. The Federal Reserve Bank of New York uses this spread in its recession probability model. Some researchers consider it a more reliable signal than the 2-year/10-year spread.

Both spreads are available as named series on FRED, updated daily. A negative reading means inversion. To see the full curve, check Treasury.gov or FRED for current data.

What the yield curve doesn't tell you

It is not a timing tool. Inversions have lasted months before any recession followed. Treating inversion as a trigger to exit markets would have moved investors out many months before a downturn, with no clear signal of when to return.
It predicts recessions, not markets directly. The relationship between yield curve inversion and stock market peaks is indirect and inconsistent as a trading signal. Equity markets have continued to rise for extended periods after inversions.
Quantitative easing distorts the signal. Fed bond-buying suppresses long yields and can produce a flat or inverted curve that does not carry its usual meaning. Read the signal alongside other indicators, not in isolation.

Common mistakes

Treating inversion as an immediate sell signal. The lead time between inversion and recession, if one follows, is long and unpredictable.
Watching only one spread. The 2-year/10-year and the 3-month/10-year can give different readings at the same moment. Both are worth tracking, and the NY Fed model specifically uses the 3-month/10-year.
Conflating recession signal with market prediction. The yield curve is a macroeconomic indicator, not a tool for timing individual stock purchases or equity market entries and exits.

Sources

Federal Reserve Bank of New York, yield curve and recession probability model: newyorkfed.org
U.S. Treasury, daily yield curve rates: home.treasury.gov
Federal Reserve, FRED: fred.stlouisfed.org (yield curve spreads and historical data)

Educational content, not financial, investment, tax, or legal advice. Last updated July 2026.