Visa Inc. (V-NYSE, $126.01) EBITDA Margins Exceeded 70% for the Quarter Ended March 31st, 2018.

Any company capable of producing such a margin, in a globally competitive market, clearly, operates with monopoly pricing in its favor.

https://www.sec.gov/Archives/edgar/data/1403161/000140316118000020/v33118form10q.htm

https://finance.yahoo.com/news/edited-transcript-v-earnings-conference-082346299.html