No documentable evidence other than Red's own growth (acquiring studios, adding employees, etc) and the Forbes estimation of his wealth, which was under $1.5 billion in 2005 and is now up to $2.8 to $3 billion now. Jannard's worth has doubled in the last 8 years. And since selling Oakley, he focuses all his attention on Red. So that's the only public information (and, an estimate at that) of how Red is doing.
Part of that wealth growth must have come from selling Oakley in 2007 for $2.1 billion.
But more power to him, for being that successful. As strange a man as he can seem to be, he did change digital cinematography forever.