stock exchange vs securities market

stock exchange and securities market both are nouns.

Word	Noun	Adjective	Verb	Adverb
stock exchange	Yes	No	No	No
securities market	Yes	No	No	No

As nouns, stock exchange and securities market are synonyms defined as:

stock exchange and securities market: an exchange where security trading is conducted by professional stockbrokers

Other synonyms of stock exchange include stock market.

stock exchange (noun)	securities market (noun)
an exchange where security trading is conducted by professional stockbrokers	an exchange where security trading is conducted by professional stockbrokers