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Video: What is a Stock Split?
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Marathon Petroleum Corporation is an integrated, downstream energy company. Co. operates through two segments: Refining & Marketing and Midstream. The Refining & Marketing segment refines crude oil and other feedstocks, including renewable feedstocks, at its refineries in the Gulf Coast, Mid-Continent and West Coast regions of the U.S.. Co. sells refined products to wholesale marketing customers domestically and internationally, to buyers on the spot market, to independent entrepreneurs who operate primarily Marathon branded outlets and through long-term supply contracts with direct dealers who operate locations mainly under the ARCO brand. According to our Marathon Petroleum stock split history records, Marathon Petroleum has had 1 split. | |
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Marathon Petroleum (MPC) has 1 split in our Marathon Petroleum stock split history database. The split for MPC took place on June 11, 2015. This was a 2 for 1 split, meaning for each share of MPC owned pre-split, the shareholder now owned 2 shares. For example, a 1000 share position pre-split, became a 2000 share position following the split.
When a company such as Marathon Petroleum splits its shares, the market capitalization before and after the split takes place remains stable, meaning the shareholder now owns more shares but each are valued at a lower price per share. Often, however, a lower priced stock on a per-share basis can attract a wider range of buyers. If that increased demand causes the share price to appreciate, then the total market capitalization rises post-split. This does not always happen, however, often depending on the underlying fundamentals of the business.
Looking at the Marathon Petroleum stock split history from start to finish, an original position size of 1000 shares would have turned into 2000 today. Below, we examine the compound annual growth rate — CAGR for short — of an investment into Marathon Petroleum shares, starting with a $10,000 purchase of MPC, presented on a split-history-adjusted basis factoring in the complete Marathon Petroleum stock split history.

Growth of $10,000.00
With Dividends Reinvested
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Start date: |
04/30/2015 |
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End date: |
04/28/2025 |
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Start price/share: |
$49.29 |
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End price/share: |
$137.58 |
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Starting shares: |
202.88 |
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Ending shares: |
278.32 |
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Dividends reinvested/share: |
$22.23 |
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Total return: |
282.91% |
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Average Annual Total Return: |
14.37% |
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Starting investment: |
$10,000.00 |
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Ending investment: |
$38,307.25 |
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Years: |
10.00 |
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Growth of $10,000.00
Without Dividends Reinvested
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Start date: |
04/30/2015 |
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End date: |
04/28/2025 |
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Start price/share: |
$49.29 |
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End price/share: |
$137.58 |
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Dividends collected/share: |
$22.23 |
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Total return: |
224.22% |
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Average Annual Total Return: |
12.48% |
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Starting investment: |
$10,000.00 |
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Ending investment: |
$32,425.97 |
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Years: |
10.00 |
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Date |
Ratio |
06/11/2015 | 2 for 1 |
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