Some absolutely are against capitalism. Some aren't. My take would be that the movement as a whole isn't "anti-capitalism" but rather pro-regulation. I think its rather neutral about capitalism...IE its not really supporting it, its not really against it, its not its focus. Its more about regulation and wealth redistribution which is not incapatable with Capitalism in and of itself (if it was, then we aren't capitalistic in this country currently). There's likely individuals in there that have anti-capitalistic views, just like there are tea parties with heavily social views, but that doesn't mean that the movement itself as a whole represents that view.