Recent US sanctions enforcement, including a naval blockade that has slashed Iran's oil exports and hard-currency inflows, has driven the free-market rial to record lows near 2.3 million per USD amid inflation above 80% and projected GDP contraction. Traders price the December outcome tightly across the 2.0–3.5 million range because ongoing diplomatic signals and Iran's use of cryptocurrency workarounds introduce uncertainty about whether pressures will intensify, stabilize through central bank interventions, or ease via renewed talks. Historical patterns of rial volatility during sanctions episodes and the absence of major escalation or breakthrough in recent weeks keep implied probabilities closely matched, with separation likely hinging on verifiable shifts in export volumes or policy announcements before year-end.