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In the past 6 years, giants like Exxon and Walmart have slid while tech companies have soared.
Exxon Mobil (XOM) is the first fallen angel on this list.
The problem: Oil and gas prices have plummeted from over $100 a barrel last summer to under $50 now. It's a lot harder to make money when you can only sell your product for half of what it used to be worth.
The oil giant reported a 50% drop in profit in the second quarter from last year.
No wonder, its stock has fallen by over 14% in the last year.