Marathon Petroleum (BSP:M1PC34) Cyclically Adjusted PB Ratio: (As of Aug. 05, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
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.

BSP:M1PC34 Marathon Petroleum Corp BSP:M1PC34
56 GF Score
Price R$1,596.69
GF Value R$1,098.42
! 6 Warning Signs
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What is Marathon Petroleum Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Marathon Petroleum  (BSP:M1PC34) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value 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 PB Ratio should give similar results to regular PB Ratio.


Marathon Petroleum Cyclically Adjusted PB Ratio Related Terms


Marathon Petroleum Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Marathon Petroleum's Cyclically Adjusted PB 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 PB Ratio Chart

Marathon Petroleum Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.95 3.04 3.40 2.88 3.11

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 PB 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 3.27 3.72 3.11 4.54 0.00

BSP:M1PC34 vs VLO, PSX, DINO: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas Refining & Marketing subindustry, Marathon Petroleum's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 PB Ratio vs Oil & Gas Industry

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

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


BSP:M1PC34
56GF Score
Marathon Petroleum Corp BSP:M1PC34
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Marathon Petroleum Cyclically Adjusted PB Ratio Calculation

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

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

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

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=334.841/333.9520*333.9520
=334.841

Current CPI (Jun. 2026) = 333.9520.

Marathon Petroleum Quarterly Data

Book Value per Share CPI Adj_Book
201609 82.531 241.428 114.160
201612 86.118 241.432 119.120
201703 78.760 243.801 107.883
201706 82.294 244.955 112.193
201709 81.332 246.819 110.044
201712 95.141 246.524 128.882
201803 105.237 249.554 140.828
201806 123.699 251.989 163.934
201809 138.165 252.439 182.779
201812 200.880 251.233 267.020
201903 195.496 254.202 256.828
201906 199.836 256.143 260.541
201909 213.821 256.759 278.105
201912 213.092 256.974 276.925
202003 181.075 258.115 234.277
202006 189.504 257.797 245.485
202009 186.246 260.280 238.963
202012 175.433 260.474 224.921
202103 186.615 264.877 235.281
202106 227.946 271.696 280.177
202109 240.016 274.310 292.202
202112 255.945 278.802 306.574
202203 218.889 287.504 254.252
202206 258.840 296.311 291.721
202209 294.089 296.808 330.893
202212 320.212 296.797 360.298
202303 325.332 301.836 359.948
202306 308.168 305.109 337.300
202309 330.893 307.789 359.020
202312 324.931 306.746 353.750
202403 321.541 312.332 343.798
202406 336.813 314.175 358.015
202409 322.607 315.301 341.690
202412 342.602 315.605 362.518
202503 305.533 319.799 319.055
202506 303.268 322.561 313.978
202509 304.602 324.800 313.185
202512 320.636 324.054 330.430
202603 299.015 330.213 302.401
202606 334.841 333.952 334.841

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book 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 (BSP:M1PC34) Overvalued in 2026?

Based on GuruFocus' analysis, Marathon Petroleum stock appears to be overvalued. The current stock price of R$1,596.69 is trading 45.4% above its estimated GF Value™ of R$1,098.42.

Key valuation signals for BSP:M1PC34:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: R$1,098.42 vs. price of R$1,596.69 (45.4% above fair value)
  • GF Score™: 56/100 with 6 warning signs

No single metric tells the full story. See the BSP:M1PC34 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 BSP:M1PC34

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

R$1,596.69
Price
R$1,098.42
GF Value