ONEOK (STU:ONK) Cyclically Adjusted PB Ratio: (As of Aug. 08, 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.

STU:ONK ONEOK Inc STU:ONK
68 GF Score
Price €74.60
GF Value €100.86
Valuation Modestly Undervalued
! 7 Warning Signs
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What is ONEOK Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


ONEOK  (STU:ONK) 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.


ONEOK Cyclically Adjusted PB Ratio Related Terms


ONEOK Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for ONEOK'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.

ONEOK Cyclically Adjusted PB Ratio Chart

ONEOK 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 5.44 5.69 5.50 6.43 3.82

ONEOK 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 4.66 3.95 3.82 4.42 4.03

STU:ONK vs MPLX, TRGP, LNG: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas Midstream subindustry, ONEOK'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.


ONEOK Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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


STU:ONK
68GF Score
ONEOK Inc STU:ONK
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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ONEOK 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.

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

For example, ONEOK'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)
=31.502/333.9520*333.9520
=31.502

Current CPI (Jun. 2026) = 333.9520.

ONEOK Quarterly Data

Book Value per Share CPI Adj_Book
201609 0.907 241.428 1.255
201612 0.849 241.432 1.174
201703 1.057 243.801 1.448
201706 12.665 244.955 17.266
201709 11.793 246.819 15.956
201712 12.017 246.524 16.279
201803 13.221 249.554 17.692
201806 13.875 251.989 18.388
201809 13.860 252.439 18.335
201812 14.053 251.233 18.680
201903 13.813 254.202 18.147
201906 13.604 256.143 17.737
201909 13.670 256.759 17.780
201912 13.560 256.974 17.622
202003 12.159 258.115 15.731
202006 12.476 257.797 16.161
202009 11.742 260.280 15.066
202012 11.165 260.474 14.315
202103 11.495 264.877 14.493
202106 11.004 271.696 13.525
202109 11.133 274.310 13.554
202112 11.932 278.802 14.292
202203 12.186 287.504 14.155
202206 12.945 296.311 14.589
202209 14.264 296.808 16.049
202212 13.710 296.797 15.426
202303 14.888 301.836 16.472
202306 14.882 305.109 16.289
202309 26.217 307.789 28.446
202312 25.924 306.746 28.223
202403 25.922 312.332 27.716
202406 26.577 314.175 28.250
202409 26.046 315.301 27.587
202412 27.901 315.605 29.523
202503 31.638 319.799 33.038
202506 30.054 322.561 31.115
202509 29.870 324.800 30.712
202512 30.494 324.054 31.425
202603 30.695 330.213 31.043
202606 31.502 333.952 31.502

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 ONEOK (STU:ONK) Overvalued in 2026?

Based on GuruFocus' analysis, ONEOK stock appears to be undervalued. The current stock price of €74.60 is trading 26% below its estimated GF Value™ of €100.86. GuruFocus considers ONEOK to be Modestly Undervalued.

Key valuation signals for STU:ONK:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €100.86 vs. price of €74.60 (26% below fair value)
  • GF Score™: 68/100 with 7 warning signs

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


ONEOK Business Description

Industry EnergyOil & Gas
Address 100 West Fifth Street, Tulsa, OK, USA, 74103
Oneok is a diversified midstream service provider specializing in natural gas gathering, processing, storage, and transportation, as well as natural gas liquids transportation and fractionation. It also operates in the refined product and crude oil segment, connecting producers, refiners, and consumers. Operations are in the midcontinent, Permian, and Rocky Mountain regions.
68GF Score

Get the complete analysis for STU:ONK

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

€74.60
Price
€100.86
GF Value