Indian Oil (NSE:IOC) Cyclically Adjusted PB Ratio: (As of Aug. 23, 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.

NSE:IOC Indian Oil Corp Ltd NSE:IOC
78 GF Score
Price ₹135.90
GF Value ₹164.30
Valuation Modestly Undervalued
! 6 Warning Signs
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What is Indian Oil Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Indian Oil  (NSE:IOC) 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.


Indian Oil Cyclically Adjusted PB Ratio Related Terms


Indian Oil Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Indian Oil'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.

Indian Oil Cyclically Adjusted PB Ratio Chart

Indian Oil Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.90 1.73 1.22 1.17

Indian Oil 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 0.00 1.36 0.00 1.17 0.00

NSE:IOC vs MPC, VLO, PSX: Cyclically Adjusted PB Ratio Comparison

For the Oil & Gas Refining & Marketing subindustry, Indian Oil'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.


Indian Oil Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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


NSE:IOC
78GF Score
Indian Oil Corp Ltd NSE:IOC
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Indian Oil 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.

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

For example, Indian Oil'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)
=0/167.3573*167.3573
=0.000

Current CPI (Jun. 2026) = 167.3573.

Indian Oil Quarterly Data

Book Value per Share CPI Adj_Book
201503 60.748 97.163 104.635
201603 61.766 102.518 100.831
201703 70.084 105.196 111.497
201706 0.000 107.109 0.000
201709 0.000 109.021 0.000
201712 0.000 109.404 0.000
201803 78.169 109.786 119.160
201806 0.000 111.317 0.000
201809 83.882 115.142 121.921
201812 0.000 115.142 0.000
201903 79.645 118.202 112.766
201906 0.000 120.880 0.000
201909 79.918 123.175 108.584
201912 0.000 126.235 0.000
202003 67.556 124.705 90.662
202006 0.000 127.000 0.000
202009 73.533 130.118 94.578
202012 0.000 130.889 0.000
202103 79.198 131.771 100.587
202106 0.000 134.084 0.000
202109 90.817 135.847 111.882
202112 0.000 138.161 0.000
202203 96.964 138.822 116.895
202206 0.000 142.347 0.000
202209 92.214 144.661 106.682
202212 0.000 145.763 0.000
202303 101.456 146.865 115.613
202306 0.000 150.280 0.000
202309 121.131 151.492 133.817
202312 0.000 152.924 0.000
202403 133.185 153.035 145.650
202406 0.000 155.789 0.000
202409 128.434 157.882 136.142
202412 0.000 158.323 0.000
202503 135.415 157.552 143.843
202506 0.000 159.755 0.000
202509 139.569 162.289 143.928
202512 0.000 163.281 0.000
202603 159.399 164.272 162.392
202606 0.000 167.357 0.000

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 Indian Oil (NSE:IOC) Overvalued in 2026?

Based on GuruFocus' analysis, Indian Oil stock appears to be undervalued. The current stock price of ₹135.90 is trading 17.3% below its estimated GF Value™ of ₹164.30. GuruFocus considers Indian Oil to be Modestly Undervalued.

Key valuation signals for NSE:IOC:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: ₹164.30 vs. price of ₹135.90 (17.3% below fair value)
  • GF Score™: 78/100 with 6 warning signs

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


Indian Oil Business Description

Industry EnergyOil & Gas
Other Exchanges 530965:India
Address J.B. Tito Marg, 3079/3, Sadiq Nagar, New Delhi, IND, 110049
Indian Oil Corp Ltd conducts business across the entire hydrocarbon value chain, from refining, pipeline transportation and marketing, to exploration and production of crude oil and gas, petrochemicals, gas marketing, alternative energy sources, and globalisation of downstream operations. The group is engaged in the following business segments: Sale of Petroleum Products, Sale of Petrochemicals, Sale of Gas, and the Other operating segment, which includes oil and gas exploration activities, explosives and cryogenic business, and windmill and solar power generation. The majority of its revenue is generated from the sale of petroleum products such as motor spirit, high speed diesel, liquified petroleum gas, aviation turbine fuel, and others. Geographically, it derives key revenue from India.
78GF Score

Get the complete analysis for NSE:IOC

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

₹135.90
Price
₹164.30
GF Value