Kosmos Energy (LSE:KOS) Cyclically Adjusted PB Ratio: (As of Aug. 06, 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.

LSE:KOS Kosmos Energy Ltd LSE:KOS
67 GF Score
Price £1.80
GF Value £2.42
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  (LSE:KOS) 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

LSE:KOS 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.


LSE:KOS
67GF Score
Kosmos Energy Ltd LSE:KOS
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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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)
=0.89/333.9520*333.9520
=0.890

Current CPI (Jun. 2026) = 333.9520.

Kosmos Energy Quarterly Data

Book Value per Share CPI Adj_Book
201609 2.221 241.428 3.072
201612 2.239 241.432 3.097
201703 2.218 243.801 3.038
201706 2.133 244.955 2.908
201709 1.944 246.819 2.630
201712 1.719 246.524 2.329
201803 1.526 249.554 2.042
201806 1.405 251.989 1.862
201809 1.650 252.439 2.183
201812 1.866 251.233 2.480
201903 1.658 254.202 2.178
201906 1.738 256.143 2.266
201909 1.793 256.759 2.332
201912 1.599 256.974 2.078
202003 1.287 258.115 1.665
202006 0.895 257.797 1.159
202009 0.810 260.280 1.039
202012 0.808 260.474 1.036
202103 0.631 264.877 0.796
202106 0.536 271.696 0.659
202109 0.511 274.310 0.622
202112 0.881 278.802 1.055
202203 0.894 287.504 1.038
202206 1.180 296.311 1.330
202209 1.731 296.808 1.948
202212 1.419 296.797 1.597
202303 1.559 301.836 1.725
202306 1.556 305.109 1.703
202309 1.756 307.789 1.905
202312 1.772 306.746 1.929
202403 1.789 312.332 1.913
202406 1.903 314.175 2.023
202409 1.918 315.301 2.031
202412 2.012 315.605 2.129
202503 1.779 319.799 1.858
202506 1.569 322.561 1.624
202509 1.391 324.800 1.430
202512 0.825 324.054 0.850
202603 0.651 330.213 0.658
202606 0.890 333.952 0.890

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 (LSE:KOS) Overvalued in 2026?

Based on GuruFocus' analysis, Kosmos Energy stock appears to be undervalued. The current stock price of £1.80 is trading 25.8% below its estimated GF Value™ of £2.42. GuruFocus considers Kosmos Energy to be Modestly Undervalued.

Key valuation signals for LSE:KOS:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: £2.42 vs. price of £1.80 (25.8% below fair value)
  • GF Score™: 67/100 with 7 warning signs

No single metric tells the full story. See the LSE:KOS 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 LSE:KOS

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

£1.80
Price
£2.42
GF Value