ABIOMED is a provider of temporary mechanical circulatory support devices, and it provides a continuum of care to heart failure patients. The company's products include: Impella 2.5?, which is a percutaneous micro heart pump with an integrated motor and sensors; which is primarily used by either interventional cardiologists to support patients in the cath lab or by cardiac surgeons in the heart surgery suite; Impella 5.0 and Impella LD, which are percutaneous micro heart pumps with integrated motors and sensors for use primarily in the heart surgery suite; and Impella RP, which is a percutaneous catheter-based axial flow pump that is designed to allow more than four liters of flow per minute.

Boston Scientific develops, manufactures and markets medical devices. The company's Medical Surgical segment consist of: Endoscopy, which develops and manufactures devices to diagnose and treat a range of gastrointestinal and pulmonary conditions; and Urology and Pelvic Health, which develops and manufactures devices to treat various urological and pelvic conditions. The company's Rhythm and Neuro segment includes: Cardiac Rhythm Management, which develops and manufactures implantable devices to treat cardiac abnormalities; and Electrophysiology, which develops and manufactures medical technologies used in the diagnosis and treatment of rate and rhythm disorders of the heart.

Cardiovascular Systems is a medical technology company. The company has developed an orbital atherectomy systems (OAS) for both peripheral and coronary commercial applications. The primary base of the company's business is catheter-based platforms capable of treating a range of vessel sizes and plaque types, including calcified plaque. The company's products include its coronary arterial disease (CAD) product, the Diamondback 360 Coronary OAS, which is a catheter-based platform designed to facilitate stent delivery in patients with CAD who are acceptable candidates for percutaneous transluminal coronary angioplasty or stenting due to de novo, severely calcified coronary artery lesions.

Delek US Holdings is a holding company. Through its subsidiaries, the company is engaged in the downstream energy business focused on petroleum refining, the transportation, storage and wholesale distribution of crude oil, intermediate and refined products and convenience store retailing. The company's segments are: refining, which processes crude oil and other feedstocks for the manufacture of transportation motor fuels; logistics, which gathers, transports and stores crude oil and markets, distributes, transports and stores refined products; and retail, which includes the operations of Alon USA Energy, Inc.'s convenience store sites located primarily in central and West Texas and New Mexico.

Edwards Lifesciences is engaged in patient-focused medical for structural heart disease, as well as critical care and surgical monitoring. The company is a manufacturer of heart valve systems and repair products used to replace or repair a patient's diseased or defective heart valve. The company is also engaged in hemodynamic and noninvasive brain and tissue oxygenation monitoring systems used to measure a patient's cardiovascular function in the hospital setting. The company's products and technologies are categorized into four main areas: Transcatheter Aortic Valve Replacement, Transcatheter Mitral and Tricuspid Therapies, Surgical Structural Heart, and Critical Care.

HollyFrontier is a petroleum refiner that produces products such as gasoline, diesel fuel, jet fuel, other lubricant products, and specialty and modified asphalt. The company's segments are: Refining, which involves the purchase and refining of crude oil and wholesale and marketing of refined products; Lubricants and Specialty Products, which includes the production of lubricant products such as base oils, white oils, other products and finished lubricants; and the company's subsidiary, Holly Energy Partners, L.P., which owns and operates logistics and refinery assets consisting of petroleum product and crude oil pipelines, terminals, tankage, loading rack facilities and processing units.

Integra LifeSciences Holdings is a medical devices company engaged in the development, manufacturing, and marketing of surgical implants and medical instruments. The company manufactures and sells its products in the following two reportable business segments: Codman Specialty Surgical, which includes technologies in dural repair, ultrasonic tissue ablation, intracranial cranial pressure monitoring, hydrocephalus management, and cranial stabilization systems; and Orthopedics and Tissue Technologies, which focus on addressing soft tissue, nerve, and tendon repairs as well as reconstruction in the hand, wrist, elbow, shoulder, ankle and foot.

Intuitive Surgical develops, manufactures, and markets the da Vinci? Surgical System and the Ion? endoluminal system. The systems consist of a surgeon console or consoles, a patient-side cart, a vision system, and proprietary instruments and accessories. The company's technology is designed to provide surgeons with a range of motion analogous to the motions of a human wrist, while filtering out the tremors inherent in a surgeon's hands. The company's primary platform for robotic-assisted surgery is its family of da Vinci Surgical Systems. The da Vinci Surgical System allows surgeons to operate while seated at an ergonomic console viewing a three-dimensional image of the surgical field.

LivaNova is a medical device company focused on the development and delivery of therapeutic solutions. Co. has three product franchises: Neuromodulation, which engaged in the design, development and marketing of neuromodulation therapy for the treatment of drug-resistant epilepsy and treatment resistant depression; Cardiac Surgery, which engaged in the development, production and sale of cardiovascular surgery products; and Cardiac Rhythm Management, which engaged in the development, manufacturing and marketing of products for the diagnosis, treatment, and management of heart rhythm disorders and heart failure.

Marathon Petroleum is an independent petroleum refining and marketing, retail and midstream company. The company's segments include: Refining and Marketing, which refines crude oil and other feedstocks at its refineries, purchases refined products and ethanol for resale and distributes refined products; Retail, which sells transportation fuels and convenience products in the retail market across the U.S.; and Midstream, which transports, stores, distributes and markets crude oil and refined products via refining logistics assets, pipelines, terminals, towboats and barges, gathers, processes and transports natural gas, and gathers, transports, fractionates, stores and markets natural gas liquids.

Merit Medical Systems manufactures and markets proprietary disposable medical devices used in interventional, diagnostic and therapeutic procedures, particularly in cardiology, radiology, oncology, critical care and endoscopy. The company conducts its business through two segments: Cardiovascular, which includes its Peripheral Intervention, Cardiac Intervention, Cardiovascular and Critical Care, Interventional Oncology and Spine and Breast Cancer Localization and Guidance product groups; and Endoscopy, which provides non-vascular stents to treat gastrointestinal and pulmonary disease including AERO?, AEROmini? and AERO DV? Fully Covered Tracheobronchial Stents and Alimaxx-B? Biliary Stent Systems.

PBF Energy is a holding company. Through its subsidiaries, the company is engaged as an independent petroleum refiner and supplier of unbranded transportation fuels, heating oil, petrochemical feedstocks, lubricants and other petroleum products in the U.S. The company operates in two business segments: refining, which the company produces a variety of products at each of its refineries such as gasoline, ultra-low-sulfur diesel, heating oil, jet fuel, lubricants, petrochemicals and asphalt; and logistics, which through its PBF Logistics LP subsidiary, the company owns or leases, operates, develops and acquires crude oil and refined petroleum products terminals, pipelines, storage facilities and similar logistics assets.

Penumbra is a healthcare company. The company designs, develops, manufactures and markets medical devices. The company's Neuro products include Penumbra System brand of products that provides a form of mechanical thrombectomy used by specialist physicians to revascularize blood vessels that are blocked by clots in the intracranial vasculature. The company's Vascular products include the Ruby Coil System that consists of detachable coils and is used in clinical applications auch as active extravasations, or the escape of blood into surrounding tissue, selective embolization in patients with visceral aneurysms, embolization in patients with gastrointestinal bleeding, and high flow arterial venous malformations.

Phillips 66 is an energy manufacturing and logistics company with midstream, chemicals, refining, and marketing and specialties businesses. The company's segments include: Midstream, which provides crude oil and refined petroleum product transportation, terminaling and processing services, as well as natural gas and natural gas liquids transportation, storage, processing and marketing services; Chemicals, which manufactures and markets petrochemicals and plastics on a worldwide basis; Refining, which refines crude oil and other feedstocks into petroleum products; and Marketing and Specialties, which purchases for resale and markets refined petroleum products, mainly in the United States and Europe.

Stryker is a medical technology company. The company provides products and services in orthopaedics, medical and surgical, and neurotechnology and spine. The company's Orthopaedics products consist of implants used in hip and knee joint replacements and trauma and extremities surgeries. The company's MedSurg products include surgical equipment and navigation systems, endoscopic and communications systems, patient handling, emergency medical equipment and intensive care disposable products, reprocessed and remanufactured medical devices and other medical device products used in a range of medical specialties. The company's Neurotechnology and Spine products include neurosurgical, neurovascular, and spinal implant devices.

Valero Energy is an international manufacturer and marketer of transportation fuels and petrochemical products. The company's segments include: Refining, which includes its refining operations, the associated marketing activities, and logistics assets that support its refining operations; Ethanol, which includes its ethanol operations, the associated marketing activities, and logistics assets that support its ethanol operations; and Renewable Diesel, which includes the operations of its joint ventture, Diamond Green Diesel Holdings LLC, which owns and operates a renewable diesel plant in Norco, LA.