Artemis, a Swedish team, was performing a tricky maneuver called a bear-away, in which a boat turns away from the wind.

WSJ: Before America's Cup Capsize, Concerns About Safety

Retirees hear things about how crazy the action is in an ETF like the Direxion Daily Financial Bear 3X Shares (NYSE: FAZ) and they wind up ignoring the asset class altogether.

FORBES: Grandpa's ETF Portfolio