AUDUSD vs EURUSD Correlation

3M correlation of AUDUSD vs EURUSD is 0.51, moderately together.

Long AUDUSD and long EURUSD can be two tickets on a similar move when the reading is high. Tap another cell for a different pair URL.

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AUDUSD vs EURUSD: 0.51, moderately together.

Pearson correlation of daily percent changes. Not a forecast and not your broker’s feed.

AUDUSD and EURUSD correlation explained

AUDUSD is the Australian dollar quoted in US dollars. EURUSD is the euro quoted in US dollars.

AUDUSD and EURUSD share the same quote currency, US dollar. Anything that moves the USD pushes both pairs the same way: a weaker USD lifts both. Dividing one by the other cancels the USD leg: AUDUSD ÷ EURUSD = the AUD/EUR rate, so what is left to pull them apart is the AUD against the EUR.

On the 3M window shown above, AUDUSD vs EURUSD reads 0.51: moderately together.

How to use AUDUSD EURUSD correlation for risk

  1. Pick a window. 1M reacts fast to news and is noisy; 3M is a common default; 6M and 1Y show the slower background link.
  2. Read the number. At 0.7 or above the two have moved strongly together, at minus 0.7 or below strongly opposite, and between minus 0.3 and 0.3 the link is weak or mixed.
  3. Size accordingly. If you plan to buy both AUDUSD and EURUSD and the reading is strongly positive, treat them as one position and split your usual risk between them. A long in one and a short in the other on a strongly positive pair partly cancel out.

Common correlation mistakes

  • Treating correlation as a constant. It changes with news, central banks and market regimes, so recheck it before each trade.
  • Assuming correlated means the same size move. AUDUSD and EURUSD can move in the same direction by different amounts, and their pip values differ, so size each one from its own stop.
  • Using a negative pair as a perfect hedge. A hedge that only works part of the time still costs two spreads.
  • Reading a 1M number right after a big event as the new normal. Compare it with 3M and 6M first.

Educational content, not investment advice. Trading leveraged products such as CFDs and forex carries a high risk of losing money.

Frequently Asked Questions

On the 3M window shown above, AUDUSD vs EURUSD reads 0.51: moderately together. Correlation runs from minus 1 (always opposite) to plus 1 (always together). Switch between 1M, 3M, 6M and 1Y above for other windows.
AUDUSD and EURUSD share the same quote currency, US dollar. Anything that moves the USD pushes both pairs the same way: a weaker USD lifts both. Dividing one by the other cancels the USD leg: AUDUSD ÷ EURUSD = the AUD/EUR rate, so what is left to pull them apart is the AUD against the EUR. On the 3M window shown above, AUDUSD vs EURUSD reads 0.51: moderately together.
On the 3M window, yes (0.51). Recheck a shorter window when the market regime changes.
If the reading is strongly positive and you want to buy both, treat them as one bigger position and split your usual risk between them. If it is strongly negative, a long in both partly offsets. Always size each trade from its own stop.
Shorter windows react faster and are noisier. 1M or 3M is a common default for active trading; 6M and 1Y show the slower background link. Correlation can flip around big news.
Pearson correlation of daily percent changes from daily ECB reference rates (via Frankfurter), used to rebuild each pair, over 1M (31 days), 3M (93 days), 6M (186 days), 1Y (370 days). It is a map of how they behaved, not a forecast or a broker quote.

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