It is noteworthy that Central banks are typically concerned when their respective currencies gain too quickly over too short of a time. From the local peak until intervention began, EURCHF fell 2.1%, 2.5%, 1.25%, and 2.5% during the early 2020, late 2020, May 2021, and August 2021 intervention periods, respectively. This time, EURCHF fell 3.35% in just six weeks before intervention began.The level of EURCHF: EURCHF is now trading at levels below where intervention began in all four prior instances of intervention over the past two years.