I do not think that . I see the value of the dollar is very stable. To say it is volatile I do not feel right. With the current president of the US is embargo the money transfer business to foreign investment. So evaporation is impossible.
In this case, because there was a trade war between the United States and China, the US dollar experienced fluctuations which caused many developing countries to be affected, because to strengthen the value of the dollar, they raised import duties on Chinese products.