I think I made up that word Correlationship but it sounds good.
As I always mention about correlations. They are only as good as the amount of data and current time position that occurs.
They correlate until they don't. They inverse eventually.
And that's because the economics of currencies are so complex with with exposure of the currencies, compared to the past where theory matched reality.
Anyhoo. Right now and as of the last couple of months we have seen a positive Relationship between
EURCHF and EURUSD
However, there is an Inverse relationship with the two above currencies and USDCHF.
It is common for both the EUR/CHF and EUR/USD to follow as they are European currency pairs.
This means they are likely to be influenced by similar economic factors such as interest rates and inflation in the Eurozone.
With the USD/CHF, it is a cross currency pair of two safe haven currencies.
And so, when the USD rises, it will appreciate against the CHF, and the USD/CHF will increase in value.