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G10 FX Overnight: Tuesday, August 18, 2026

G10 FX Overnight: Tuesday, August 18, 2026

G10 FX overnight movers chart for August 18, 2026

G10 FX Overnight: Tuesday, August 18, 2026

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Key PointsAbout This Summary iAn AI tool helped create this summary based on the text of the article. The Luna3 team has checked it for accuracy and revised as necessary. Read more about how we use AI in our publishing process.
  • Oil surged over 3%, driving NOK to the session's biggest G10 move at nearly 1% against the dollar
  • NZD and AUD led the commodity bloc higher, with Kiwi clearing 0.5900 on broad risk appetite
  • DXY slipped below 99.60 but the move was shallow — JPY stayed flat near 159.37, diverging from gold's 2% rally

Overnight Summary

The dollar drifted lower overnight but the real story was crude oil — WTI jumped 3.09% to $84.95 and Brent climbed 2.91% to $91.10, putting a bid under every commodity-linked currency on the board. DXY slipped 0.096% to 99.57, a modest move that masked sharper losses against the Scandinavian and antipodean bloc. Gold’s 2.12% rally to $4,473 didn’t translate into a yen bid — USD/JPY barely moved, sitting at 159.37 — suggesting the overnight tone was more about risk appetite than defensive positioning. Copper edged up 0.20% to $6.613, a quiet move but enough to keep the AUD underpinned.

Key Pair Breakdown

USD/NOK (9.4136, -0.953%): The session’s standout mover. A 3% oil rally is direct fuel for the Norwegian krone given the country’s petroleum-driven current account. USD/NOK broke below 9.45 and is now testing the 9.41 handle. If Brent holds above $91, there’s little reason for this to reverse in the near term.

NZD/USD (0.59035, +0.838%): The Kiwi cleared the 0.5900 level with some force. This looks like a broad commodity-FX bid rather than anything New Zealand-specific — the move tracked AUD higher and caught a tailwind from the oil and metals complex. The question for the Asian session is whether 0.5900 holds as new support or acts as a ceiling on a retest.

NZD/JPY (94.057, +0.795%): Almost entirely a function of NZD strength rather than JPY weakness. With USD/JPY flat, this cross was a pure expression of Kiwi momentum. It’s now at the upper end of its recent range near 94.00.

AUD/USD (0.71078, +0.625%): The Aussie pushed through 0.7100, helped by the copper bid and the broader commodity tone. This is the pair most sensitive to the Asian open — any follow-through in iron ore or base metals futures during Sydney hours could extend the move toward 0.7130.

AUD/JPY (113.21, +0.537%): A risk barometer that’s pointing firmly green. The cross pushed above 113.00 on the back of AUD strength with JPY offering no resistance. Watch this for any reversal signal — a fade here would suggest the overnight risk bid is losing momentum.

USD/SEK (9.5076, -0.519%): The Swedish krona rode the same tailwind as NOK, though the move was roughly half the size. USD/SEK dropped below 9.51. The SEK tends to follow the NOK in oil-driven sessions but with less conviction given Sweden’s lower energy exposure.

USD/CHF (0.81052, -0.442%): The franc gained against the dollar, which fits the gold-up template but also the broader dollar-softness theme. A move below 0.8100 would be the next level to watch — it’s sitting right on the edge.

EUR/USD (1.1582, +0.405%): The euro was a passenger, gaining against the softer dollar without any standout European driver. 1.1582 puts it within striking distance of the 1.1600 handle. Not leading, but not lagging either.

GBP/USD (1.3545, +0.401%): Sterling tracked EUR/USD almost tick-for-tick higher — EUR/GBP at 0.85454 was essentially unchanged on the session (-0.046%). Cable at 1.3545 is approaching the 1.3550-1.3600 zone that has capped prior rallies.

Asian Session Setup

The overnight handoff is clean for commodity-linked pairs. AUD/USD above 0.7100 going into Sydney sets up a test of conviction — if iron ore and copper futures hold their bid in early Asian trade, the Aussie has room to push toward 0.7130-0.7150. NZD/USD above 0.5900 is the level to watch for continuation versus fade.

USD/JPY at 159.37 is the puzzle. Gold rallied 2% and the dollar softened, yet the yen didn’t move. That divergence either means the yen is about to catch up with a delayed bid, or the BoJ-intervention risk premium is keeping traders from adding fresh yen longs at these levels. Tokyo open price action in USD/JPY will set the tone for the entire Asian session.

DXY below 99.60 is a mild headwind for dollar bulls, but the move was too shallow to signal a directional break. Asia is more likely to trade off commodity prices than dollar direction today.

Bottom Line

The overnight session was an oil story dressed up as an FX session — crude did the heavy lifting, and commodity currencies collected the gains. The pair to watch into Asia is AUD/USD at the 0.7100 handle: it’s the cleanest read on whether the commodity bid has follow-through or fades at the first opportunity.

Read next: FX Markets · How to Read the COT Report · What Is a Bond?

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