The Dollar Is Weakening on a Multi-Year Scale — What Forex Traders Must Pay Attention To

The conflict with Iran has injected fresh volatility into currency markets, but the more important story may be playing out on a much longer timeframe. Across the DXY, EUR/USD, USD/JPY, and USD/CAD, the same analytical theme is surfacing: multi-year trend structures are being tested, and the setups that emerge from those tests carry meaningful probability edges — particularly to the downside on the dollar.

Zooming out is not optional here. It is the entire point.

DXY: A Long-Term Channel and a Trend Line That Has Been Hit Too Many Times

The immediate reflex in a geopolitical conflict is to treat the U.S. dollar as a safe-haven bid. The charts complicate that narrative.

On the weekly scale, the DXY is trading near 100 — down substantially from the 110 level reached in January 2025 and the 114 peak in October 2022. More significantly, price is interacting with a long-term upsloping trend line that has defined the structure of the dollar index for decades. That line was tested in 2011, tagged again in 2014 before a sharp rally, and approached once more near the 2022 high. Each interaction has resolved with a meaningful directional move.

The current setup places price at that same trend line, with the SMA 50 and SMA 200 on the weekly chart converging overhead as resistance. That combination — a long-term structural trend line approached from above, with moving averages pressing down — favors a breakdown scenario. For traders watching this level, the higher-probability entry is not anticipating the break but waiting for a confirmed breach and a retrace back to the broken trend line as resistance before positioning short.

The broader context reinforces the caution: viewed against the 1985 high of 163, the entire post-2022 rally is a relatively contained counter-trend move within a much larger declining structure.

EUR/USD: Bear Flag on Two Timeframes

The euro has rallied sharply against the dollar — roughly 18% from December 2024 through February 2026, recovering from the 1.00 level to current prices. That move is significant. But what matters now is what the chart is doing with that move.

On the weekly scale, EUR/USD is consolidating just below the SMA 50 in a structure that resembles a bear flag. The daily chart confirms the pattern: a short-term bear flag is beginning to resolve to the downside, with a minor double-bottom providing the only near-term structural support before the next cluster of pivot levels lower.

The long-term reference point that adds weight to this setup is a downsloping trend line extending from the 2008 highs. That line has acted as resistance on multiple occasions — most notably in 2020, when it triggered a reversal and a roughly 15% decline. EUR/USD recently pushed above that line and is now interacting with it again, a zone where sellers have historically found their footing.

If this bear flag resolves lower and the major support levels along the way give way, the measured move potential toward that long-term trend line is approximately 14%. That is not a near-term target — it is a structural reference for understanding the magnitude of what is at stake in the current setup.

USD/CAD: Inverse Head and Shoulders Points Higher

Not every dollar pair is set up the same way. USD/CAD tells a different story.

On the daily chart, the pair is forming what appears to be an inverse head and shoulders pattern — a classic reversal structure that favors a move to the upside. Zooming out reveals a macro-scale version of the same pattern playing out over a longer timeframe, with a neckline that has already been tested and price pushing higher through what had previously been resistance.

The key reference is a near triple-top at the February 2025 highs near 1.47. If USD/CAD can build on the current inverse head and shoulders setup and challenge that level, a confirmed breakout there opens the door to a measured move that targets the range of that prior triple-top structure. The setup is not a trade trigger today — the pattern needs confirmation — but it is one of the cleaner bullish structures visible across major FX pairs right now.

USD/JPY: Double Top and a Trend Line Under Pressure

The yen setup reverts to the broader dollar-weakness theme. On the weekly chart, USD/JPY has formed a double top near the July 2024 highs — a pivot level that has historically marked meaningful reversals in this pair.

Below that double top, an upsloping trend line has been tested four to five times without breaking. That frequency of tests is a warning sign, not a source of comfort. Trend lines that are repeatedly tested tend to break rather than hold indefinitely, and the confluence of a double-top rejection with a heavily-tested support line materially increases the probability of a downside resolution.

The level to watch on a breakdown is 162 — a historically significant structural reference on USD/JPY. A confirmed break of the trend line followed by a retrace and continuation lower toward that zone would represent a high-probability setup consistent with the broader dollar-weakness thesis visible across the other pairs.

What to Watch

The through-line across these four pairs is consistent: the U.S. dollar is under structural pressure on a multi-year basis, and the current geopolitical backdrop — while creating short-term noise — does not appear to be reversing that pressure in any durable way.

The sequencing matters. On DXY and EUR/USD, the setups favor patience: wait for confirmed breakdowns and retraces before positioning. On USD/CAD, the setup is constructive but needs pattern confirmation before it qualifies as an entry. On USD/JPY, the double-top rejection at resistance is the signal to watch — a clean break of the underlying trend line would be the trigger.

None of these are predictions. They are probability frameworks built on pattern structures that have demonstrated reliability across multiple timeframes and market cycles. The edge is in the confirmation, not in anticipating it.

This article is intended for informational and educational purposes only and does not constitute financial advice. All trading involves risk. Past performance is not indicative of future results.