Trader consensus across the USD-Iranian rial ranges at end-December reflects persistent uncertainty over sanctions enforcement, oil export revenues, and Iran's domestic inflation amid regional diplomatic and proxy dynamics. Structural barriers such as restricted access to foreign reserves and central bank currency management continue to pressure the rial, while any easing in international restrictions or shifts in global energy markets could support modest appreciation. The closely matched probabilities around 2.5-3.5 million highlight how incremental developments in nuclear talks, trade flows, or escalation signals may tip outcomes without clear dominance by any single range. Upcoming policy deadlines or multilateral meetings within the resolution window remain key variables traders monitor for potential separation.