DELL (Yahoo: DELL)
Dell, Inc. and its subsidiaries engage in the design, development, manufacture, marketing, sale, and support of computer systems and services worldwide *.

ECA (Yahoo: ECA)
EnCana Corporation engages in the exploration, production, and marketing of natural gas, crude oil, and natural gas liquids *.

EV (Yahoo: EV)
Eaton Vance Corp., through its subsidiaries, engages in the creation, marketing, and management of investment funds in the United States *.

KLAC (Yahoo: KLAC)
KLA-Tencor Corporation provides process control and yield management solutions for the semiconductor manufacturing and related microelectronics industries worldwide *.

ORLY (Yahoo: ORLY)
O'Reilly Automotive, Inc. operates as a specialty retailer of automotive aftermarket parts, tools, supplies, equipment, and accessories in the United States *.

USPH (Yahoo: USPH)
U.S. Physical Therapy, Inc., through its subsidiaries, operates outpatient physical and occupational therapy clinics in the United States *.

WOOF (Yahoo: WOOF)
VCA Antech, Inc. operates as an animal healthcare services company in the United States *.

* company descriptions from Yahoo! Finance.