EUR/USD — characteristics of the most important forex pair

EUR/USD is the most traded currency pair in the world. According to the Bank for International Settlements Triennial Survey of September 2025, it accounts for twenty-two point seven percent of global daily forex turnover — roughly 1.5 trillion dollars of exchange per day. Second in line, USD/JPY, holds thirteen percent; third, GBP/USD, just under ten. The pair combines the currencies of the two largest economies on the planet, and its profile — high liquidity, narrow spread, readable trends, clean reaction to macroeconomic releases — makes it the natural first choice for every retail client.

Why this pair specifically

EUR and USD together represent over forty percent of global GDP. The eurozone produces around fifteen trillion dollars of output a year, the United States about twenty-five. EUR/USD belongs to the group of major pairs — characterised by the highest liquidity, tightest spreads and most well-defined trends of any pair category. Every international transaction between Europe and the US flows through this pair, and multi-billion-dollar positions held by hedge funds, commercial banks, and central banks use it as the principal channel for currency risk exposure.

The second layer is liquidity. The more participants trade the same instrument, the tighter the spread brokers offer, because they compete for the client. A typical spread at an ECN broker on EUR/USD during the London session is between one and three pipettes (0.1 to 0.3 pip) — the tightest spread on the whole forex market. At dealing-desk brokers the spread widens to 0.5-1.2 pip, but it is still the cheapest pair to trade.

The third layer is the self-reinforcing effect. Everyone trades EUR/USD, so beginners pick it as well, which deepens liquidity and entrenches the pair\'s dominance. The roughly nine-point lead in turnover over the second-place pair has been stable for more than a decade.

Quote anatomy — bid, ask, spread

A EUR/USD quote shown on a trading platform consists of two prices: a sell price (bid) and a buy price (ask). The difference between them is the spread — the broker\'s transaction cost paid by the client opening and closing a position. Most brokers now quote with five decimals — the fourth decimal is a full pip, the fifth is a pipette (one tenth of a pip), used for more precise execution.

In practice, during the London session at a good ECN broker the EUR/USD spread runs one to three pipettes (0.1 to 0.3 pip). During the Asian session it widens to three to five pipettes. In the minutes around US macroeconomic releases — CPI, NFP, an FOMC decision — the spread can briefly blow out to ten or fifteen pipettes, a full pip, due to liquidity withdrawal on the interbank market during the first reaction.

Typical moves — daily, weekly, monthly range

The daily range on EUR/USD measured by the fourteen-day average true range (ATR-14) in 2026 averages around sixty-five to seventy-five pips. This is the number a trader should know by heart, because it defines the scale of a typical single-session move.

Historical anomalies: in January 2015, after the unexpected removal of the EUR/CHF floor by the SNB, EUR/USD fell more than eight hundred pips in thirty minutes. In March 2020, in the opening days of the covid-19 pandemic, daily ranges reached four hundred pips. These events are educational, but position planning should assume 2026 norms, not 2015 values.

Peak hours — when to trade

EUR/USD generates most of its movement in the overlap of the London and New York sessions — twelve to four PM UTC, or two to six PM Warsaw time. That window accounts for around sixty percent of the pair\'s daily range. Before it — from eight to noon UTC — the European session leads, with smaller but technically cleaner moves (less noise, more readable chart formations). After five PM Warsaw time, European closes overlap with US afternoon positioning, and after ten PM UTC the Asian session takes over with the lowest volatility of the day.

Practical consequence: if you trade on M15 or H1 and need price range for realistic entries and exits, the two-to-five PM Warsaw time window offers the most setups. If you trade on D1 or W1, the opening hour of a position matters less because the trade spans many sessions.

"EUR/USD is to the retail trader what the S&P 500 is to the stock investor — the first and often only pair worth memorizing: typical range, peak hours, fundamental drivers, the nearest technical levels. Only after that does it make sense to expand the portfolio into crosses and exotics." — Kathy Lien, Day Trading and Swing Trading the Currency Market, Wiley, 2016, chapter 3.

Correlation with the dollar index DXY

The dollar index DXY is a weighted average of the US dollar against a basket of six currencies. The composition was set in 1973 by the Federal Reserve and has not changed since the introduction of the euro in 1999: euro 57.6 percent, Japanese yen 13.6 percent, British pound 11.9 percent, Canadian dollar 9.1 percent, Swedish krona 4.2 percent, Swiss franc 3.6 percent.

Because the euro makes up nearly sixty percent of the basket, DXY and EUR/USD move in almost opposite directions — when DXY rises (the dollar strengthens globally), EUR/USD falls, and vice versa. The correlation coefficient on five-year data sits at around minus 0.95, virtually a perfect negative correlation.

The practical consequence matters. Whenever you analyze EUR/USD, first ask: is the move euro-specific or dollar-wide. A EUR/USD rise after a strong German PMI is euro-specific — DXY will not react meaningfully. A EUR/USD fall after a hawkish Fed decision is dollar-wide — DXY will rise, and every dollar pair will react in the same direction (USD/JPY up, GBP/USD down, AUD/USD down).

Fundamental driver — Fed vs ECB rate differential

The long-term direction of EUR/USD is largely a function of the interest-rate differential between the Federal Open Market Committee (FOMC) and the European Central Bank (ECB). When US rates are higher than eurozone rates, capital flows into dollars in search of higher Treasury yields, which strengthens the dollar and weakens EUR/USD. When the differential narrows or reverses, the direction flips.

In May 2026, the Fed Funds rate sits at 4.25-4.50 percent, while the ECB deposit rate is at 2.25 percent — a differential of roughly two hundred basis points in favor of the Fed. That is one reason EUR/USD oscillates in 2026 around 1.05-1.10, below the decade average (about 1.15).

What to do tomorrow

1. Write down the current ATR-14 for EUR/USD. Open the EUR/USD D1 chart on your platform, add the ATR indicator with a period of fourteen, and write down the value in pips. This is the scale of a typical daily move you should know by heart when sizing positions. Refresh this number once a month — it shifts with market volatility.
2. Compare the EUR/USD spread at three of your brokers. At three PM Warsaw time (middle of the London-NY overlap), open the client panel of each broker you are considering and write down the bid/ask spread on EUR/USD. At a good ECN it should sit in the 0.1-0.3 pip range. If any broker shows a spread above a full pip in this hour, the model is not suited to scalping or day trading.
3. Open the DXY chart side by side with EUR/USD. In TradingView or in your broker platform, display both charts in a horizontal layout. After two weeks of daily observation you will start to intuit whether a move is euro-specific or dollar-wide. That reflex will save you many wrong trades.
4. Add the upcoming release calendar to your weekly plan. Every Monday at eight in the morning, open ForexFactory or Investing.com, filter for USD and EUR high-impact releases (red flags), and write the times into your calendar. Those are your hours of heightened attention — either you trade the release deliberately, or you close positions before it.