AMN amn healthcare services inc amn healthcare services inc NYSE Professional Services ARC arc document solutions, inc. NYSE Professional Services ASGN asgn incorporated NYSE Professional Services ACGL arch capital group ltd. NASDAQ Property-Casualty Insurers AFG american financial group, inc. NYSE Property-Casualty Insurers AGO assured guaranty ltd. NYSE Property-Casualty Insurers AIG american international group, inc. new NYSE Property-Casualty Insurers ALL allstate corporation (the) NYSE Property-Casualty Insurers AMBC ambac financial group, inc. NASDAQ Property-Casualty Insurers AMSF amerisafe, inc. NASDAQ Property-Casualty Insurers AXS axis capital holdings limited NYSE Property-Casualty Insurers AIRG airgain, inc. NASDAQ Radio And Television Broadcasting And Communications Equipment AVNW aviat networks, inc. NASDAQ Radio And Television Broadcasting And Communications Equipment AAMC altisource asset management corp com AMEX Real Estate AHH armada hoffler properties, inc. NYSE Real Estate ALEX alexander & baldwin, inc. reit holding company NYSE Real Estate ARL american realty investors, inc. NYSE Real Estate AAT american assets trust, inc. NYSE Real Estate Investment Trusts ABR arbor realty trust NYSE Real Estate Investment Trusts ACRE ares commercial real estate corporation NYSE Real Estate Investment Trusts ADC agree realty corporation NYSE Real Estate Investment Trusts AGNC agnc investment corp. NASDAQ Real Estate Investment Trusts AHT ashford hospitality trust inc NYSE Real Estate Investment Trusts AIV apartment investment and management company NYSE Real Estate Investment Trusts AJX great ajax corp. NYSE Real Estate Investment Trusts AKR acadia realty trust NYSE Real Estate Investment Trusts ALX alexander's, inc. NYSE Real Estate Investment Trusts AMH american homes 4 rent common shares of beneficial interest NYSE Real Estate Investment Trusts AMT american tower corporation (reit) NYSE Real Estate Investment Trusts APLE apple hospitality reit, inc. common shares NYSE Real Estate Investment Trusts ARE alexandria real estate equities, inc. NYSE Real Estate Investment Trusts ARI apollo commercial real estate finance, inc NYSE Real Estate Investment Trusts ARR armour residential reit, inc. NYSE Real Estate Investment Trusts AVB avalonbay communities, inc. NYSE Real Estate Investment Trusts ARCO arcos dorados holdings inc. class a shares NYSE Restaurants ARKR ark restaurants corp. NASDAQ Restaurants ARMK aramark NYSE Restaurants ASPN aspen aerogels, inc. NYSE RETAIL: Building Materials AAOI applied optoelectronics, inc. NASDAQ Semiconductors ADI analog devices, inc. NASDAQ Semiconductors AMAT applied materials, inc. NASDAQ Semiconductors AMBA ambarella, inc. - ordinary shares NASDAQ Semiconductors AMD advanced micro devices, inc. NYSE Semiconductors AMKR amkor technology, inc. NASDAQ Semiconductors AOSL alpha and omega semiconductor limited - common shares NASDAQ Semiconductors ASX ase technology holding co., ltd. american depositary shares (each representing two common shares) NYSE Semiconductors AVGO broadcom inc. NASDAQ Semiconductors AXTI axt inc NASDAQ Semiconductors AJG arthur j. gallagher & co. NYSE Specialty Insurers AON aon plc class a ordinary shares (ireland) NYSE Specialty Insurers