Recent US sanctions intensification, naval blockade enforcement, and sharply reduced Iranian oil exports—now below 300,000 barrels per day—have driven the unofficial USD/IRR street rate above 2.02 million by late August, with further weakening viewed as likely by end-September. Traders price the 2.2M+ bucket highest at 41.5% because sustained secondary sanctions targeting shadow fleets and buyers, combined with lower foreign-currency inflows and persistent inflation near 70%, continue to pressure the rial against the dollar. The 2.0-2.1M range at 20% captures scenarios of partial stabilization if enforcement eases or alternative revenue channels emerge, while lower buckets reflect limited probability of meaningful recovery absent major diplomatic shifts. Market pricing aligns with the wisdom of crowds assessing these near-term economic and geopolitical catalysts.