Judge didn't hint outcome in oral arguments. Unresolved questions - including legal standing - about ability to appeal.
Justice Department, Federal Reserve also can appeal the Wednesday ruling that threw out the 21-cent cap set by Durbin Amendment.
Two instead of four unaffiliated payment networks could be required as result of federal judge's ruling.
Trades also indicate possible appeal after federal court throws out Fed's 21-cent cap.
Federal judge throws out Durbin Amendment's 21-cent cap in emphatic ruling.
The European Commission has proposed capping debit and credit card interchange at 0.2% and 0.3% respectively.
India cited as origin of cyber attack on supermarket chain that has forced Redwood CU to re-issue 18,400 cards.
A new survey of debit issuers representing about 45% of U.S. debit traffic suggests the debit industry is living on less interchange but is also experiencing less fraud.
CU24, CO-OP said they still have competitive differentiation as Discover gets to 133,000 surcharge-free ATMs.
New York AG investigating practice, consultant says, and group of 16 Senate Dems write CFPB seeking federal probe.