Most of them are, but they have been splitting the difference for years between value (i.e. price and positioning) and volume (i.e. percent of inventory sold).

FORBES: Digital Advertising's Chaotic Evolution

Even after decades of traveling the same streets, UPS is using global positioning satellites along with parcel-volume data to remap delivery areas.

FORBES: Logistics in Brown

The Parrot Audio Suite application, already available for free on App StoreTM and Google Play, will enable users to manage the connection of the two speakers and their audio parameters, as well as taking advantage of the existing setting capabilities like the positioning of the speakers in a room, the volume, the equalizer...

ENGADGET: Parrot's Zikmu Solo speaker goes Duo, two make a pair over WiFi

Schwab appears to be positioning itself as the Wal-Mart of ETFs, betting that it can make profits on volume rather than the sales price.

FORBES: Schwab ETFs Get Even Cheaper