Largest companies by operating income

Companies ranked by operating income, in USD

Company	Op. income (TTM)	Sector	Industry	Country	Exchange
1CSCOCISCO SYSTEMS, INC.	$15.37B	Technology	Computer Networking	United States	Nasdaq
2ANETArista Networks, Inc.	$4.55B	Technology	Computer Networking	United States	NYSE

U.S.-exchange common stocks; ADRs and funds excluded. 2 companies. Reported USD values. TTM means trailing twelve months; companies without a comparable value are excluded.