how are companies classified under gics 
every company is assigned a gics classification at the sub industry levelaccording to its primary business activity msci and s p dow jones indices use revenues and earnings to determine a company s principal business 4the bottom linesectors are broad classifications such as consumer staples healthcare or technology the global industry classification standard is the primary financial industry standard for defining sector classifications the sector breakdown of a portfolio shows how much asset weights are allocated to what industry sectors and are commonly expressed as a percentage 