Kosmos Energy (STU:KOS1) Cyclically Adjusted PB Ratio: (As of Aug. 04, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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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.

STU:KOS1 Kosmos Energy Ltd STU:KOS1
67 GF Score
Price €2.19
GF Value €2.76
Valuation Modestly Undervalued
! 7 Warning Signs
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What is Kosmos Energy Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Kosmos Energy  (STU:KOS1) 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.


Kosmos Energy Cyclically Adjusted PB Ratio Related Terms


Kosmos Energy Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Kosmos Energy'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.

Kosmos Energy Cyclically Adjusted PB Ratio Chart

Kosmos Energy 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 1.28 2.34 2.51 1.32 0.38

Kosmos Energy 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 0.68 0.67 0.38 1.19 0.00

STU:KOS1 vs KRP, DMLP, TBN: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas E&P subindustry, Kosmos Energy'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.


Kosmos Energy Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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


STU:KOS1
67GF Score
Kosmos Energy Ltd STU:KOS1
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Kosmos Energy 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.

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

For example, Kosmos Energy'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)
=1.012/333.9520*333.9520
=1.012

Current CPI (Jun. 2026) = 333.9520.

Kosmos Energy Quarterly Data

Book Value per Share CPI Adj_Book
201609 2.600 241.428 3.596
201612 2.650 241.432 3.666
201703 2.560 243.801 3.507
201706 2.431 244.955 3.314
201709 2.175 246.819 2.943
201712 1.947 246.524 2.637
201803 1.729 249.554 2.314
201806 1.599 251.989 2.119
201809 1.848 252.439 2.445
201812 2.076 251.233 2.760
201903 1.933 254.202 2.539
201906 1.950 256.143 2.542
201909 2.015 256.759 2.621
201912 1.887 256.974 2.452
202003 1.441 258.115 1.864
202006 0.995 257.797 1.289
202009 0.891 260.280 1.143
202012 0.892 260.474 1.144
202103 0.735 264.877 0.927
202106 0.624 271.696 0.767
202109 0.596 274.310 0.726
202112 1.036 278.802 1.241
202203 1.070 287.504 1.243
202206 1.375 296.311 1.550
202209 1.980 296.808 2.228
202212 1.631 296.797 1.835
202303 1.767 301.836 1.955
202306 1.813 305.109 1.984
202309 2.036 307.789 2.209
202312 2.057 306.746 2.239
202403 2.091 312.332 2.236
202406 2.249 314.175 2.391
202409 2.286 315.301 2.421
202412 2.429 315.605 2.570
202503 2.126 319.799 2.220
202506 1.845 322.561 1.910
202509 1.601 324.800 1.646
202512 0.944 324.054 0.973
202603 0.751 330.213 0.760
202606 1.012 333.952 1.012

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 Kosmos Energy (STU:KOS1) Overvalued in 2026?

Based on GuruFocus' analysis, Kosmos Energy stock appears to be undervalued. The current stock price of €2.19 is trading 20.7% below its estimated GF Value™ of €2.76. GuruFocus considers Kosmos Energy to be Modestly Undervalued.

Key valuation signals for STU:KOS1:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €2.76 vs. price of €2.19 (20.7% below fair value)
  • GF Score™: 67/100 with 7 warning signs

No single metric tells the full story. See the STU:KOS1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Kosmos Energy Business Description

Industry EnergyOil & Gas
Address 8176 Park Lane, Suite 500, Dallas, TX, USA, 75231
Kosmos Energy Ltd is a deepwater exploration and production company focused on meeting the world's growing demand for energy. It has diversified oil and gas production from assets offshore Ghana, Equatorial Guinea, Mauritania, Senegal and the Gulf of America. The Company had operations in four geographic reporting segments: Ghana, Equatorial Guinea, Mauritania/Senegal and the Gulf of America. The majority of revenue is derived from the Ghana segment.
67GF Score

Get the complete analysis for STU:KOS1

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

€2.19
Price
€2.76
GF Value