This paper documents a new stylised fact in foreign exchange markets: intraday currency returns display prolonged reversals around the major benchmark fixings, characterised by an appreciation of the U.S. dollar pre-fixing and a depreciation thereafter. Tracing returns around the clock, the...

We document that intraday currency returns display systematic reversals around the major benchmark fixings, characterized by an appreciation of the U.S. dollar pre-fix and a depreciation post-fix. We propose an explanation based on constrained intermediation by foreign exchange dealers....