美股100億以上的公司隱含波動率及各項排名清單

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About WBA
Walgreens Boots Alliance is one of the largest retail pharmacy chains in the U.S., with over 8,500 locations. Nearly three quarters of Americans live within five miles of a Walgreens location. Roughly two thirds of revenue is generated from prescription drug sales; Walgreens makes up 20% of total prescription revenue in the U.S. Walgreens also generates sales from retail products (general wellness consumables and its own branded merchandise), European drug wholesale, and healthcare. With more locations incorporating additional services like Health Corner and Village Medical, Walgreens creates an omnichannel experience for patients and positions itself as a one-stop healthcare provider.

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About CVX
Chevron is an integrated energy company with exploration, production, and refining operations worldwide. It is the second-largest oil company in the United States with production of 3.0 million of barrels of oil equivalent a day, including 7.7 million cubic feet a day of natural gas and 1.7 million of barrels of liquids a day. Production activities take place in North America, South America, Europe, Africa, Asia, and Australia. Its refineries are in the U.S. and Asia for total refining capacity of 1.8 million barrels of oil a day. Proven reserves at year-end 2022 stood at 11.2 billion barrels of oil equivalent, including 6.1 billion barrels of liquids and 30.9 trillion cubic feet of natural gas.

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About GILD
Gilead Sciences develops and markets therapies to treat life-threatening infectious diseases, with the core of its portfolio focused on HIV and hepatitis B and C. The acquisitions of Corus Pharma, Myogen, CV Therapeutics, Arresto Biosciences, and Calistoga have broadened this focus to include pulmonary and cardiovascular diseases and cancer. Gilead's acquisition of Pharmasset brought rights to hepatitis C drug Sovaldi, which is also part of combination drug Harvoni, and the Kite, Forty Seven, and Immunomedics acquisitions boost Gilead's exposure to cell therapy and noncell therapy in oncology.

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About COP
ConocoPhillips is a U.S.-based independent exploration and production firm. In 2022, it produced 1.2 million barrels per day of oil and natural gas liquids and 3.1 billion cubic feet per day of natural gas, primarily from Alaska and the Lower 48 in the United States and Norway in Europe and several countries in Asia-Pacific and the Middle East. Proven reserves at year-end 2022 were 6.6 billion barrels of oil equivalent.

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About MPC
Marathon Petroleum is an independent refiner with 13 refineries in the midcontinent, West Coast, and Gulf Coast of the United States with total throughput capacity of 2.9 million barrels per day. Its Dickinson, North Dakota, facility produces 184 million gallons a year of renewable diesel. Its Martinez, California, facility will have the ability to produce 730 million gallons a year of renewable diesel once converted. The firm also owns and operates midstream assets primarily through its listed master limited partnership, MPLX.
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About CMI
Cummins is the top manufacturer of diesel engines used in commercial trucks, off-highway equipment, and railroad locomotives, in addition to standby and prime power generators. The company also sells powertrain components, which include transmissions, turbochargers, aftertreatment systems, and fuel systems. Cummins is in the unique position of competing with its primary customers, heavy-duty truck manufacturers, who make and aggressively market their own engines. Despite robust competition across all its segments and increasing government regulation of carbon emissions, Cummins has maintained its leadership position in the industry.

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About VLO
Valero Energy is one of the largest independent refiners in the United States. It operates 15 refineries with a total throughput capacity of 3.2 million barrels a day in the United States, Canada, and the United Kingdom. Valero also owns 12 ethanol plants with capacity of 1.6 billion gallons of ethanol a year and holds a 50% stake in Diamond Green Diesel, which has capacity to produce 1.2 billion gallons per year of renewable diesel.


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About MRO
Marathon is an independent exploration and production company primarily focusing on unconventional resources in the United States. At the end of 2022, the company reported net proved reserves of 1.3 billion barrels of oil equivalent. Net production averaged 343 thousand barrels of oil equivalent per day in 2022 at a ratio of 70% oil and NGLs and 30% natural gas.


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About UNH
UnitedHealth Group is one of the largest private health insurers, providing medical benefits to about 53 million members globally, including 5 million outside the U.S. as of mid-2023. As a leader in employer-sponsored, self-directed, and government-backed insurance plans, UnitedHealth has obtained massive scale in managed care. Along with its insurance assets, UnitedHealth's continued investments in its Optum franchises have created a healthcare services colossus that spans everything from medical and pharmaceutical benefits to providing outpatient care and analytics to both affiliated and third-party customers.

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About AKAM
Akamai operates a content delivery network, or CDN, which entails locating servers at the edges of networks so its customers, which store content on Akamai servers, can reach their own customers faster, more securely, and with better quality. Akamai has over 325,000 servers distributed over 4,100 points of presence in more than 1,000 cities worldwide. The firm also offers security and cloud computing for its customers, and those businesses have grown to be bigger than the legacy CDN.