The Sector, SubSector, Industry, and SubIndustry factors return their respective Revere Business Industry Classification System (RBICS) codes. For convenience, Portfolio123 mnemonic codes are provided which map to RBICS code. For example, Industry!=WOODPAPER in a screen or simulation will exclude companies in the Forestry and Paper Products industry. Similarly, Sector=ENERGY will return only energy stocks. Deprecated industries and sub-industries are displayed in gray, and the date of deprecation is noted.