Turn to page 9 for a ranking of the 150 largest merchant acquirers of general purpose credit, debit, and prepaid card transactions handled during calendar year 2018. Those acquirers were headquartered in 41 countries. U.S.-based companies accounted for 34 places on the ranking. There were 11 acquirers from Iran, where all transactions handled are domestic-market-only debit card payments. Russian acquirers held 8 places. Acquirers in France held 6 places. There were 5 each in Japan and Turkey and 4 each in Australia, Brazil, Italy, and South Korea. New to the top 10 was China UMS, which j...