MPC (Marathon Petroleum) Cyclically Adjusted PS Ratio: (As of Aug. 05, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

MPC Marathon Petroleum Corp MPC
56 GF Score
Price $297.75
GF Value $213.41
Valuation Significantly Overvalued
! 6 Warning Signs
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What is Marathon Petroleum Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Marathon Petroleum  (NYSE:MPC) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.


Marathon Petroleum Cyclically Adjusted PS Ratio Related Terms


Marathon Petroleum Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Marathon Petroleum's Cyclically Adjusted PS Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Marathon Petroleum Cyclically Adjusted PS Ratio Chart

Marathon Petroleum Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.38 0.59 0.67 0.57 0.59

Marathon Petroleum Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PS Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.63 0.71 0.59 0.84 0.00

MPC vs VLO, PSX, DINO: Cyclically Adjusted PS Ratio Comparison

For the Oil & Gas Refining & Marketing subindustry, Marathon Petroleum's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Marathon Petroleum Cyclically Adjusted PS Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, Marathon Petroleum's Cyclically Adjusted PS Ratio distribution charts can be found below:

* The bar in red indicates where Marathon Petroleum's Cyclically Adjusted PS Ratio falls into.


MPC
56GF Score
Marathon Petroleum Corp MPC
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Marathon Petroleum Cyclically Adjusted PS Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.

Marathon Petroleum's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Marathon Petroleum's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=179.29/333.9520*333.9520
=179.290

Current CPI (Jun. 2026) = 333.9520.

Marathon Petroleum Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 31.355 241.428 43.371
201612 32.491 241.432 44.942
201703 30.732 243.801 42.096
201706 35.164 244.955 47.940
201709 37.815 246.819 51.165
201712 42.621 246.524 57.736
201803 39.304 249.554 52.596
201806 48.097 251.989 63.741
201809 50.412 252.439 66.690
201812 31.041 251.233 41.261
201903 41.981 254.202 55.152
201906 50.344 256.143 65.637
201909 41.745 256.759 54.295
201912 42.957 256.974 55.825
202003 34.265 258.115 44.332
202006 18.762 257.797 24.304
202009 26.782 260.280 34.363
202012 27.692 260.474 35.504
202103 34.886 264.877 43.984
202106 45.283 271.696 55.659
202109 50.739 274.310 61.771
202112 58.407 278.802 69.961
202203 67.004 287.504 77.829
202206 100.364 296.311 113.113
202209 92.686 296.808 104.285
202212 85.071 296.797 95.721
202303 77.996 301.836 86.295
202306 86.737 305.109 94.937
202309 103.326 307.789 112.109
202312 96.423 306.746 104.975
202403 90.348 312.332 96.602
202406 108.326 314.175 115.145
202409 105.744 315.301 111.999
202412 103.553 315.605 109.573
202503 100.693 319.799 105.149
202506 110.094 322.561 113.982
202509 114.503 324.800 117.729
202512 108.580 324.054 111.896
202603 115.932 330.213 117.245
202606 179.290 333.952 179.290

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

Is Marathon Petroleum (MPC) Overvalued in 2026?

Based on GuruFocus' analysis, Marathon Petroleum stock appears to be overvalued. The current stock price of $297.75 is trading 39.5% above its estimated GF Value™ of $213.41. GuruFocus considers Marathon Petroleum to be Significantly Overvalued.

Key valuation signals for MPC:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: $213.41 vs. price of $297.75 (39.5% above fair value)
  • GF Score™: 56/100 with 6 warning signs

No single metric tells the full story. See the MPC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Marathon Petroleum Business Description

Industry EnergyOil & Gas
Address 539 South Main Street, Findlay, OH, USA, 45840-3229
Marathon Petroleum is a leading integrated downstream and midstream energy company that operates 13 refineries in the Gulf Coast, Mid-Continent, and West Coast regions of the United States with an aggregate crude oil refining capacity of 3.0 million barrels per day. The company is one of the largest producers of renewable diesel in the US; its Dickinson, North Dakota facility has the capacity to produce 184 million gallons per year, and its Martinez, California, joint venture facility (a 50/50 partnership with Neste) reached its full capacity of 730 million gallons per year in late 2024. Marathon also owns the general partner and approximately 64% of MPLX LP, a large-cap master limited partnership that owns and operates midstream energy infrastructure and logistics assets.
56GF Score

Get the complete analysis for MPC

Cyclically Adjusted PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$297.75
Price
$213.41
GF Value