| AMR Market Cap History Table | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Below is a table of the AMR market cap history going back to 5/10/2017:
Also see: AMR Shares Outstanding History and AMR YTD Return |
AMR Market Cap History — Alta Mesa Resources Capitalization Over Time
As of 4/30/2026 Alta Mesa Resources has a market cap of 2.37 billion. Investors often follow the AMR market cap history to compare the size of the company over time.
This page shows AMR market capitalization trends over time, with 30 market cap datapoints presented, dating back to 5/10/2017.
| AMR Market Cap History Chart | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
AMR Historical Market Cap: +9.79% CAGR 
Mouse over chart for data details
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| AMR Stock Price Chart |
| About Alpha Metallurgical Resources Inc |
| Alpha Metallurgical Resources, Inc. is a mining company with operations across Virginia and West Virginia. Co. supplies metallurgical products to the steel industry. Its portfolio of mining operations consists of about 15 underground mines, seven surface mines and nine coal preparation plants. It extracts, processes and markets met and thermal coal from deep and surface mines for sale to steel and coke producers, industrial customers, and electric utilities. It conducts mining operations only in the U.S. with mines in Central Appalachia. We show 30 historical shares outstanding datapoints in our AMR shares outstanding history coverage, used to compute AMR market cap on those dates. Understanding the changing numbers of shares outstanding, the changing share price, and the resulting changing AMR market cap history over the course of time is important for investors interested in comparing AMR's market cap history versus its peers. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies, and then calculating their respective market caps. Comparing the share price of AMR versus a peer is one thing; comparing AMR market cap versus a peer is a completely different story. Furthermore, via fluctuation both in per-share price and in the number of shares outstanding (via issuance of new shares over time, the repurchase of existing shares), the market cap for a company like AMR can fluctuate over the course of history. With this page we aim to empower investors researching AMR by allowing them to research the AMR market cap history. |
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| Video: The Importance of Market Cap | |
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Video: The Importance of Market Cap
| AMR Share Performance |
| Market Cap Peers |
| Alta Mesa Resources (AMR) is categorized under the Materials sector; to help you further research historical market cap numbers, below are some other companies in the same sector:
AMRK Market Cap History AMRS Market Cap History AP Market Cap History APD Market Cap History APM Market Cap History APOG Market Cap History AQMS Market Cap History ARCH Market Cap History AREC Market Cap History ARLP Market Cap History More Materials companies » |
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