President Trump has threatened to impose tariffs on European nations unless an agreement is reached by June regarding the US purchase of Greenland. This threat revives concerns over the ongoing US–EU trade conflicts, underlining the unpredictability of American trade policies. Commerzbank’s Head of FX and Commodity Research indicates that while the US dollar remains strong, the existing US current account deficit renders it susceptible to potential weaknesses if trade tensions dampen capital inflows.
The imposition of tariffs has thus far not severely impacted the economy due, in part, to a lower-than-expected increase in tariffs. Additionally, an AI investment boom has positively influenced the market. Despite these factors, uncertainty looms, and the EU could potentially face more economic challenges if trade conflicts intensify, potentially affecting the euro negatively.
Massive US Current Account Deficit
The massive US current account deficit is reliant on capital imports. Should the dollar’s status as the world’s reserve currency be perceived as threatened, it might lead to a decline in capital imports and even potential capital outflow. This scenario may necessitate an adjustment of the US current account balance, possibly leading to further dollar depreciation.
The threat of new tariffs on European nations over the Greenland issue brings significant uncertainty back to the forefront. With a potential June deadline, we are now facing several weeks where political headlines could easily dictate market direction. This reminds us that a sudden escalation in trade disputes remains a key risk.
As a result, traders should anticipate a notable increase in volatility, especially for the EUR/USD currency pair. Looking back at the trade disputes of 2018-2020, we saw how quickly sentiment could reverse, making options strategies that benefit from price swings, like straddles, a logical consideration. This is a time for active management rather than passive positioning.
Implied volatility for three-month EUR/USD options has already climbed over the past week, reflecting the market’s growing concern. This move is consistent with the patterns we observed in late 2025 when other geopolitical tensions flared up. The market is clearly starting to price in the risk of a more turbulent period ahead.
Economic Vulnerability and Volatility
We must also consider the US economy’s underlying vulnerability, driven by its massive current account deficit. The latest figures for the fourth quarter of 2025 showed the deficit remains wide, making the US dollar dependent on steady capital imports. A trade war that spooks foreign investors could disrupt these flows and trigger a sharp downward correction for the dollar.
However, some are betting that the European economy is more exposed to an escalation. Given that recent German manufacturing data has shown some softness, new tariffs could hurt the EU’s export-heavy economy more severely than the US. This could paradoxically strengthen the dollar against the euro in the short term.
The AI investment boom that supported the US economy through past tensions has also played a role, though its momentum has cooled since the peak in 2024. Therefore, we cannot rely on it to provide the same economic cushion this time. Hedging long dollar exposure with out-of-the-money put options may be a wise precaution against a sudden loss of investor confidence.
