Is Dark Matter a Fluid?

I would not have thought dark matter was dense enough to be a fluid in the sense that we understand it. I don't see how can anything out in space be considered a fluid given how low density it is. We really don't know much about dark matter other than it exists and it has gravity so why not? Some skepticism some people were like I don't think so this one sounds weird to people, because they think of space as cold and mostly empty maybe filled with tiny little crystals or particles flying around but like a fluid is a weird thing to think about having in space right and it seems strange.