ticker vs stock ticker

ticker and stock ticker both are nouns.

Word	Noun	Adjective	Verb	Adverb
ticker	Yes	No	No	No
stock ticker	Yes	No	No	No

As nouns, ticker and stock ticker are synonyms defined as:

ticker and stock ticker: a character printer that automatically prints stock quotations on ticker tape

ticker (noun)	stock ticker (noun)
a character printer that automatically prints stock quotations on ticker tape	a character printer that automatically prints stock quotations on ticker tape
a small portable timepiece
the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body