You will ask, what is going on?
You compared the EUR/USD and USD/JPY charts and found that the USD/JPY has a greater range of changes. The USD/JPY broke through a major technical resistance level, with an increase of more than 200 points, while the EUR/USD only fell by 100 points, and did not fall below a certain key support.
You will ask yourself, if the entire dollar is supported by each set, why is the trend of the euro/dollar weaker than the trend of the dollar/yen?
This is related to cross currency pairs. In this example, it is about EUR/JPY.
When the USD/JPY broke through its main resistance level, the USD/JPY went further higher as the exchange rate triggered the stop-loss buying.
Since more USD/JPY buying will lead to a weaker yen, this may prompt the EUR/JPY (or other yen crosses) to also break through its main resistance level, once the stop-loss buying is triggered, and attract the search for a breakthrough market Of traders enter the market, the EUR/JPY will go higher.
This will cause the euro to strengthen and slow the euro/dollar decline. Here, EUR/JPY buying has played a key role, which is why the EUR/USD decline has not been as big as USD/JPY.
So, even if you are only trading the major currency pairs involving the US dollar, cross trading will still affect your trading.