20 Most Profitable Stocks of the Last 20 Years

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10. Diamondback Energy, Inc. (NASDAQ:FANG)

Net Income (TTM): $4.19 billion

Operating Margin: 36.53%

Market Capitalization: $44.11 billion

Diamondback Energy, Inc. (NASDAQ:FANG) is another of the most profitable stocks on our list.

TheFly reported on January 23 that Morgan Stanley reduced its price target for FANG to $171 from $183 and maintained an Overweight rating. The revision reflects updated oil price assumptions for 2026–27. The firm is expecting solid fourth-quarter operations but weaker cash flow due to lower realized commodity prices.

Similarly, a day earlier on January 22, Mizuho also reduced its price target for Diamondback Energy, Inc. (NASDAQ:FANG) slightly to $194 from $195 while maintaining an Outperform rating, following a routine update to its model ahead of the company’s fourth-quarter earnings report.

Diamondback Energy, Inc. (NASDAQ:FANG) is an independent oil and natural gas company focused on the acquisition, development, and production of unconventional resources in the Permian Basin.

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