downtick vs dealing

downtick and dealing both are nouns.

Word	Noun	Adjective	Verb	Adverb
downtick	Yes	No	No	No
dealing	Yes	No	No	No

As nouns, dealing is a hypernym of downtick; that is, dealing is a word with a broader meaning than downtick:

downtick: a transaction in the stock market at a price below the price of the preceding transaction
dealing: the act of transacting within or between groups (as carrying on commercial activities)

Other hypernyms of downtick include dealings, transaction.

downtick (noun)	dealing (noun)
a transaction in the stock market at a price below the price of the preceding transaction	method or manner of conduct in relation to others
	the act of transacting within or between groups (as carrying on commercial activities)