Guide · Bonds and rates

Yield Curve Inversion Explained: What the 2s10s Spread Tells You

By Tian KriekPublished 14 October 2026Updated 14 October 2026

What a yield curve is

When the US Treasury borrows, it issues bonds for different lengths of time, from one month to thirty years. Each maturity has its own yield, the annual return an investor earns for lending to the government for that period. A yield curve plots those yields against maturity. The US Treasury publishes the figures each business day as the Daily Treasury Par Yield Curve Rates, and we chart the latest curve on our macro page.

Normally the curve slopes upward. Lending for longer carries more risk, from inflation and from changing interest rates, so investors want a higher yield for it. This is called a normal curve. When short and long yields are about equal, the curve is flat. When short-term yields are higher than long-term yields, the curve is inverted.

The 2s10s spread

The most quoted way to summarise the curve is a single number: the 10-year yield minus the 2-year yield, known as the “2s10s” spread. It is quoted in percentage points (or basis points, where 1 basis point is 0.01 percentage points). A positive spread means the curve is upward-sloping; a negative spread means it is inverted.

The 2-year yield is closely tied to where the market thinks the Fed’s policy rate will be over the next couple of years. The 10-year yield reflects expected average short rates over a decade plus a premium for the risk of holding a long bond. So a negative 2s10s spread says the market expects policy rates to fall from where they are, usually because it expects growth or inflation to weaken.

Other measures are used too. The Federal Reserve Bank of New York’s research on recession probabilities uses the gap between the 10-year yield and the 3-month yield. Different spreads can disagree for a while; it is worth checking more than one. Our macro page shows the 2-year and 10-year yields, the 2s10s spread, and a twelve-month history of that spread, with a plain label for the shape.

Why inversion gets so much attention

Researchers at the Federal Reserve have found that yield curve inversions have preceded US recessions over the postwar period, with very few false alarms. The New York Fed publishes a recession-probability model based on the curve, and the San Francisco Fed has noted that, measured as the 10-year yield minus the 1-year yield, an inversion came before each of the nine recessions between 1955 and 2018, with one false signal in the mid-1960s. The National Bureau of Economic Research (NBER) is the body that officially dates US recessions.

The logic is straightforward. Central banks raise short-term rates to cool inflation. If they raise them enough, the market begins to expect that growth will weaken and that rates will later be cut, which pulls long-term yields down below short-term ones. Tight credit then squeezes lending, and the economy slows.

Why it is not a timer

• The lag varies. Recessions have started anywhere from a few months to about two years after the curve inverted. A trader who acts on inversion as a trigger can be early by a very long time.
• The curve often steepens just before trouble. The re-steepening, when short-term yields fall quickly as the central bank cuts, has often come close to the start of a recession.
• The inversion that began in 2022 lasted unusually long, and growth continued through much of it. It is a reminder that the signal describes odds, not certainty, and that unusual conditions (such as large fiscal support or the unwinding of a pandemic) can weaken the link.
• Correlation is not a mechanism. The curve is a reading of market expectations. It does not cause recessions by itself.

What the curve means for stocks and currencies

Stocks. Equities often kept rising for months after an inversion. The shape can matter more for specific sectors. Banks borrow short and lend long, so a flat or inverted curve squeezes their margins, while falling long-term yields can support companies whose value depends on distant profits. See how inflation news reaches stocks.

Currencies. A currency responds to yield differences between countries, so look at the US two-year yield against its equivalent in the other country. If the US two-year yield rises faster than that of the euro area, the dollar often strengthens against the euro, other things equal. Details in our Fed and forex guide.

Regime. The curve is one of the inputs to a risk-regime read: a steeply inverted curve together with falling stocks and rising volatility describes a late-cycle, stressed market. We use it that way in our risk gauge, together with trend and volatility, and explain the other signals in our risk-on and risk-off guide.

A sensible way to use it

1. Look at the level and the direction. Is the spread negative, near zero or positive? Has it been moving toward zero or away from it?
2. Add context. Compare it with the Fed’s policy range and with inflation data. A 2-year yield far above the policy rate says the market expects hikes; far below says it expects cuts.
3. Keep the time frame honest. The curve speaks about months and years, not days. It is background, not a trading signal.
4. Write down what would change your mind (for example, the spread turning positive again, or unemployment rising quickly) before you need it.

How KriekTrade uses the curve

The curve shape is one input to the KriekTrade risk gauge, alongside the trend and volatility of the stock market. It never decides a trade by itself: setups still need to agree with the daily trend and the long-term cycle. Learn more on KriekTrade. This article is education, not advice, and trading carries a high risk of loss.

Risk warning. Trading forex, CFDs, futures and crypto carries a high risk of losing money rapidly, and most retail accounts lose money. For education only; this is not advice. This article is general education written by Tian Kriek of Kriek Institutional Research, the publisher of KriekTrade. It is not personal advice or a recommendation. See the risk warning and disclaimer.