Hope everyone has already made a position in NYX...
Should'nt have too much effect.
What NYSE is actually cutting loose is a not for profit corporation (NYSE Regulation, Inc.) operating under the "NYSE Group, Inc."
When NYSE wanted to go public, the SEC would'nt approve it without their regulatory arm being set up like this, since the Manley Act did not allow for SRO's to be operated on a "for profit" basis. A convenient legal fiction -- between annual assessments and fines, any SRO doing its job effeciently and effectively should have more revenue than expenses. This may actually cost NYSE as a whole some money. But not too much.