You've probably seen some version of this chart before. It shows cumulative net flows into US-domiciled equity funds since 2006. Index ETFs have ripped higher, index mutual funds have held steady, ...

The temperature on any given summer day may be in the 80s or 90s. So why does it feel so much hotter and oppressive at times? That's the heat index doing its thing. Here's how it works: What is the ...

Indexes aren’t just important for index funds. By creating a virtual portfolio that represents the “market” (or a specific style of sector), they also establish a “typical” return and risk level that ...

Add Yahoo as a preferred source to see more of our stories on Google. Conditions are hot and humid in Michigan and getting hotter as the week goes on. Forecasters often refer to the heat index as a ...

If you thought the worst of the summer's sweltering temperatures were behind us, think again. Some schools closed early as the late-August heat wave gripping Ohio brought temperatures not seen in ...