CORRELATION BETWEEN CURRENCY PAIRS

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Much is done studying correlation, relationships of things like the USDCHF and the EURUSD and there effect on the  EURCHF, and in even intramarket relationships (i.e., Stocks and the dollar, commodities and the dollar, one bond vs another bond, etc.).
You are right that USDCHF went up, EURUSD went down… TODAY. The USDCHF impact was greater which caused the EURCHF to move higher. That is math as you can be sure there are arbitrage traders who will take the spread out “if the pieces get out of whack”. Today, one went higher, the other went lower and overall, the dollar went higher against both in that window after the headline came out.
Having said that, the EURCHF can go higher by having the USDCHF move higher, the EURUSD staying unchanged or even going higher at a slower pace.
Someone asked me the other day “What happened when the EURCHF moved 1000 pips from 1.1000 to 1.2000 three years ago?”
So I looked it up, and found that the USDCHF moved up by around 750-800 pips, and the EURUSD moved lower by 100 pips.... PLEASE READ MORE AT SOURCE: forexlive.com