Eurodollar Curve

What Is the Eurodollar Curve?

The Eurodollar curve refers to the term structure constructed from CME Eurodollar futures contracts, each of which prices the expected 3-month LIBOR rate at a specific future date. The contracts trade in quarterly expirations extending up to 10 years forward, allowing the market to express a continuous, forward-looking path for short-term dollar interest rates.

Despite the name, Eurodollar futures have nothing to do with the euro currency. They reference offshore U.S. dollar deposits held outside the United States banking system — the foundational instrument of the Eurodollar system that underpinned global dollar funding for decades. Each contract has a notional value of $1 million, and the price is quoted as 100 minus the expected LIBOR rate, so a price of 94.50 implies a market-expected rate of 5.50%.

The ED strip — a series of consecutive quarterly contracts — forms an implied forward path for monetary policy, functioning as a real-time market referendum on the Federal Reserve's likely rate trajectory.

Why It Matters for Traders

For decades, Eurodollar futures were the world's single largest futures market by open interest, at times exceeding $10 trillion in notional outstanding. Macro traders used the ED curve to:

1. Price rate hike/cut expectations at specific FOMC meetings, often with finer granularity than Fed Funds Futures
2. Identify inflection points in the monetary cycle by tracking kinks, inversions, or sudden steepening in the strip
3. Execute curve trades — for example, buying near-dated contracts while selling deferred ones to express a view that the Fed would cut rates sooner than the market implied

The spread between specific ED contracts (e.g., EDZ4 vs. EDZ6) was a standard proxy for the yield curve steepness in rate-sensitive portfolios.

How to Read and Interpret It

A downward-sloping ED curve (near contracts priced higher than deferred ones, implying lower future rates) signals market expectations of rate cuts — typically associated with anticipated economic weakness or financial stress. An upward-sloping curve implies tightening or stable policy ahead.

Key signals:

• Curve flattening rapidly: Market pricing in fewer hikes or earlier cuts; watch for correlation with equity rallies
• Inversion in the 1-to-4 year strip: Historically a strong recession indicator, reflecting belief the Fed will be forced to ease
• Implied volatility of ED options spiking: Signals policy uncertainty; watch FOMC meeting dates
• Large open interest concentration in specific quarterly contracts: Pinpoints where real positioning exists

Historical Context

During the 2004–2006 Fed tightening cycle, the Eurodollar curve flattened dramatically as the Fed raised the funds rate from 1.0% to 5.25% in 17 consecutive 25bp steps. The front end priced each hike precisely, while the back end stayed anchored — a textbook example of how the strip encodes policy expectations in real time.

In late 2022, the 2-year Eurodollar strip inverted sharply as the Fed hiked at the most aggressive pace since the 1980s, with the implied Fed Funds rate peaking above 5% in 2023 contracts. The curve simultaneously priced aggressive subsequent cuts, reflecting market conviction that rapid hikes would tip the economy into recession — a debate that dominated macro strategy throughout 2023.

Limitations and Caveats

With the LIBOR transition completed in June 2023, Eurodollar futures are being wound down in favor of SOFR futures. The historical database remains invaluable for backtesting, but forward-looking rate curve analysis increasingly migrates to the SOFR strip. Additionally, the ED curve reflects bank credit risk (since LIBOR includes a credit spread over the true risk-free rate), meaning it can diverge from pure policy expectations during credit stress events.

What to Watch

• SOFR futures curve as the successor instrument for real-time policy pricing
• Historical ED curve inversions as backtesting benchmarks
• LIBOR-OIS spread history for decomposing credit vs. rate components of the old ED curve
• Open interest migration from ED to SOFR futures at the CME