In the long run, this change could be seen as meaningful.
Besides a continuous unwinding of short-yen positions, which capped the dollar's rise, last week's weak (U.S.) economic figures that led to a fall in U.S. long-term interest rates also weighed down on the currency. But basically, the market is thin due to Christmas holiday in major countries.
Overall, the trading is thin due to closure of the U.S. financial markets.
The market would like to see whether the Fed will raise interest rates more than two more times.