I've been keeping my eye on You.com, tracking a few SERPs over time compared to other Bing- and Google-based engines. So far, the results don't seem independent.

Try comparing results with a Bing-based engine (e.g. DuckDuckGo) or a Google-based one (e.g. StartPage, GMX) to see if they differ. (Don't use Google or Bing directly, since results will be personalized based on factors like location, device, your fingerprint, etc.).