This paper revisits the uncovered interest parity relation. It supplements existing work in two ways: It focuses on long instead of short-term interest rates, and, related to that, employs exchange rate expectations derived from purchasing power parity (PPP) instead of actual outcomes. Among the major floating currencies over the period 1975–1997, the paper cannot support the notion of further increases in UIP-validation beyond that associated with the wave of financial market liberalization and deregulation in the early 1980s.