MasterCard Q2 profit beats estimates; shares off

Currency fluctuations were responsible for much of the outperformance, and with MasterCard generally posting much-better-than-expected results in prior quarters, the second-quarter report was seen as not good enough.

"There was no big positive surprise in these results, and they've had a lot of positive surprises in prior quarters. Investors expect them now," said Chris Brendler, an analyst at Stifel Nicolaus in Baltimore.

Second-quarter revenue rose 25 percent to $1.2 billion.

(Reporting by Dan Wilchins; Editing by John Wallace/Jeffrey Benkoe)