http://www.marketwatch.com/story/robert-shillers-secret-for-beating-the-market-2015-07-27 Food for thought in this flat or decaying (thanks to Chinese) market. The author is well-respected around the world, and I respect his opinions. I have to study this writing further. Perhaps it may help others. HTH. YMMV.
What exactly are these quantitative rules? I will have to read into that more when I get time. Essentially he's calling it "smart" but he's just still passively trading.
This isn't really that new a concept. These have been around for at least four or five years. Essentially, it uses a bit of quant to screen but you can still get the benefits of buying in ETF form. It's the sort of concept that gets reinvented on a periodic basis.