USD Weakens as Futures Surge on Iran Deal Hopes; Oil Tumbles

US futures are surging while oil prices tumble sharply amid renewed optimism over a potential Iran nuclear deal, creating a significant shift in forex market dynamics. The decline in crude prices is removing a key inflationary input, prompting traders to reassess Federal Reserve rate expectations and weakening the dollar's yield advantage. Oil-linked currencies such as CAD are facing headwinds from the energy selloff, with USD/CAD potentially finding support as both components face opposing pressures. The tech-led equity rally is boosting risk sentiment broadly, supporting commodity currencies like AUD and NZD against the dollar. However, ZeroHedge's characterization of this as 'déjà vu' underscores the market's skepticism — similar Iran deal optimism has repeatedly faded. Brent crude's decline is particularly significant for EUR/USD and GBP/USD, as lower energy costs ease Europe's import burden. Traders should watch for confirmation of diplomatic progress; failure would likely trigger a sharp reversal in oil and risk assets alike.