What does ROII stand for?

What does ROII mean?

ROII	Return On Internet Investment Business » General
ROII	Return On Industrial Insurance Business » General
ROII	Return On Inventory Investment Business » General
ROII	Return On Inventory Investment Business » Accounting
ROII	Requisite Organization International Institute Academic & Science » Universities
ROII	Requisite Organization International Institute Business » General
ROII	Relative Optical Interference Intensity Academic & Science » Physics
ROII	Rock Oil International Incorporated Business » Firms
ROII	Reverse Osmosis, second stage Business » Products
ROII	RAM Optical Instrumentation, Inc. Business » Firms