The 50 largest issuers of Mastercard, Visa, and Discover brand prepaid cards in the U.S. accounted for $159.05 billion in purchase volume at merchants in 2016, up 9.9% over 2015. Cash withdrawals at ATMs or obtained over the counter at financial institutions are not included in purchase volume shown here. That purchase volume was generated by 4.66 billion purchase transactions, up 9.5% from 2015. Purchase volume averaged $517 per card and $34 per transaction There were 307.6 million Mastercard, Visa, and Discover prepaid cards in circulation from the 50 largest issuers at year-end 2016, up ...