Extended car warranties cover your vehicle in the event of a mechanical breakdown and help make car repair costs more predictable, but they’re not financially worth it for many consumers.

A complement to the S&P 500. Our research team assigns Bronze ratings to strategies they’re confident will outperform a relevant index, or most peers, over a market cycle on a risk-adjusted ...

It weights stocks passing basic liquidity screens by their float-adjusted market cap. Qualifying stocks must have at least 5% of their shares publicly available, and their annual dollar value ...

These features have the possibility of additionally increasing performance by orders of magnitude, for certain types of data. See sections below for more details. qs is highly parameterized and can be ...