The U.S. dollar rose slightly on Wednesday, rebounding from earlier losses as hopes for Middle East de-escalation faded after Iran rejected a U.S. ceasefire proposal.
At 17:45 ET (21:45 GMT), the U.S. Dollar Index—tracking the greenback against six major currencies—gained 0.2% to 99.62.
The United States has put forward a ceasefire proposal.
While there is some optimism that Washington and Tehran may be exploring ways to end the conflict, markets remain cautious as both sides continue to offer conflicting accounts of how negotiations are progressing.
Reportedly eager to find an exit from the war, President Donald Trump has backed a U.S. proposal outlining a 15-point peace plan to Iran. The plan not only calls for Tehran to dismantle its primary nuclear facilities but also urges the reopening of the Strait of Hormuz — a critical shipping route south of Iran that has been largely shut to tanker traffic in recent weeks. This disruption has pushed energy prices higher and raised concerns about global inflation.

According to Thierry Wizman, global FX and rates strategist at Macquarie, investor optimism was revived by news that the U.S. had presented concrete terms to Iran. However, he cautioned that a ceasefire is unlikely in the near term. Instead, the U.S. may escalate military pressure over the next couple of weeks to push Iran toward meaningful concessions, with major combat potentially reaching a turning point by mid-April. He described the situation as entering a third phase — one defined by both negotiation and conflict, rather than purely one or the other.
Wizman added that the possibility of renewed negotiations signals a more critical stage in the U.S.-Iran conflict. Initially driven by diplomacy, then by direct confrontation, the situation may now evolve into a blend of both. While this dual-track approach could help stabilize market sentiment compared to outright war, it also carries the risk of sharper downside if it fails to deliver lasting stability and security.
Iran has pushed back against the proposal.
On Wednesday morning, the Fars News Agency reported that Tehran does not accept a ceasefire, emphasizing that it seeks a complete end to the conflict rather than a temporary halt in fighting.
Later, Press TV stated that Iran would not allow the United States to dictate when the war should end, citing a senior political figure. According to the report, the official outlined five key demands from Tehran, including a full cessation of attacks as well as international recognition and guarantees of Iran’s authority over the Strait of Hormuz.
However, Axios later cited a U.S. official saying Washington had not received any formal communication from Iran rejecting the ceasefire plan.
Iranian Foreign Minister Abbas Araghchi also denied that negotiations with the U.S. were taking place, according to Reuters. While acknowledging that messages were being passed through intermediaries, he stressed that such exchanges should not be interpreted as formal talks.
In the energy market, Brent crude — the global benchmark — briefly dipped below $100 per barrel on Wednesday, though it remains significantly higher than the roughly $70 level seen before the conflict began in late February.
Rising concerns over energy-driven inflation have strengthened expectations that central banks worldwide may need to adopt a more hawkish policy stance. In Germany, ECB President Christine Lagarde indicated that further tightening could be justified even if the inflation spike proves temporary.
The euro and yen edged higher on Wednesday, while sterling drew attention following the latest UK inflation figures.
The euro saw a slight uptick, with EUR/USD hovering around 1.1560. At the same time, the Japanese yen strengthened, pushing USD/JPY down to 159.33.
Sterling remained largely flat, trading near 1.3365 against the dollar, but came into focus after the release of new consumer inflation data. The UK’s consumer price index rose 3% year-on-year in March, unchanged from February. Notably, the data does not yet reflect the impact of rising oil prices triggered by the Middle East conflict.
According to Sanjay Raja, chief UK economist at Deutsche Bank, the UK’s disinflation trend may be approaching a pause. He noted that February’s inflation reading is already outdated, as households and businesses are beginning to feel the effects of the Iran conflict, particularly through higher fuel costs. Further increases in fuel prices are expected, and even if the conflict ends quickly, energy bills — including electricity and gas — could still climb by double digits over the summer.
Sources: Anuron Mitra
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