trading operations vs dealing

trading operations and dealing both are nouns.

Word	Noun	Adjective	Verb	Adverb
trading operations	Yes	No	No	No
dealing	Yes	No	No	No

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

trading operations: financial transactions at a brokerage; having to do with the execution of trades and keeping customer records
dealing: the act of transacting within or between groups (as carrying on commercial activities)

Other hypernyms of trading operations include dealings, transaction.

trading operations (noun)	dealing (noun)
financial transactions at a brokerage; having to do with the execution of trades and keeping customer records	method or manner of conduct in relation to others
	the act of transacting within or between groups (as carrying on commercial activities)