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Graham Holdings Co. is a diversified education and media company made up of subsidiaries. Firm operations include educational services; television broadcasting; online, print, and local news; home health and hospice care; and manufacturing. The Company segments into the following seven reportable segments: Kaplan International, Higher Education, Supplemental Education, Television Broadcasting, Manufacturing, Healthcare, and Automotive. The majority of revenue comes from the Kaplan International segment, which includes higher education, test preparation, language instruction, and professional training. A large portion of company revenue also comes from the television broadcasting segment through advertising.
iRhythm Technologies Inc is a digital healthcare company that creates trusted solutions that detect, predict, and prevent disease. Its principal business is the design, development, and commercialization of device-based technology to provide ambulatory cardiac monitoring services that it believes allow clinicians to diagnose certain arrhythmias quicker and with greater efficiency than other services that rely on traditional technology. Each Zio System combines an FDA-cleared and CE-marked, wire-free, patch-based, 14-day wearable biosensor that continuously records electrocardiogram (ECG) data with a proprietary, FDA-cleared, CE-marked cloud-based data analytic software to help physicians monitor patients and diagnose arrhythmias.