Here is some of what Don Dion was blogging about this past week on RealMoney.

Although they are best left to experienced investors, here's a basic rundown on these ETFs with often complex strategies .

Roger Nusbaum thinks these funds have promise, but that more time is needed to assess them well.

Elon Musk will soon allow Dogecoin to purchase SpaceX merchandise.

The theme park company has opened Guardians of the Galaxy: Cosmic Rewind and not everyone is happy despite the ride getting wonderful reviews.

Aurora is slashing its production capacity as it builds a runway toward positive Ebitda a year from now.

Costco took in $984 million in new membership fee in its fiscal third quarter, helping the bulk retailer top Street forecasts for topline revenues.