CMI (Cummins) Cyclically Adjusted PB Ratio: (As of Aug. 05, 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.

CMI Cummins Inc CMI
84 GF Score
Price $650.25
GF Value $330.11
Valuation Significantly Overvalued
! 8 Warning Signs
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What is Cummins Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Cummins  (NYSE:CMI) 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.


Cummins Cyclically Adjusted PB Ratio Related Terms


Cummins Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Cummins'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.

Cummins Cyclically Adjusted PB Ratio Chart

Cummins 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 4.37 4.40 4.06 5.59 7.66

Cummins 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 5.05 6.40 7.66 7.82 0.00

CMI vs EMR, ITW, PH: Cyclically Adjusted PB Ratio Comparison

For the Specialty Industrial Machinery subindustry, Cummins'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.


Cummins Cyclically Adjusted PB Ratio vs Industrial Products Industry

For the Industrial Products industry and Industrials sector, Cummins's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


CMI
84GF Score
Cummins Inc CMI
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Cummins 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.

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

For example, Cummins'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)
=92.758/333.9520*333.9520
=92.758

Current CPI (Jun. 2026) = 333.9520.

Cummins Quarterly Data

Book Value per Share CPI Adj_Book
201609 41.206 241.428 56.998
201612 40.874 241.432 56.537
201703 42.655 243.801 58.428
201706 44.702 244.955 60.943
201709 45.967 246.819 62.194
201712 43.808 246.524 59.344
201803 44.874 249.554 60.050
201806 44.694 251.989 59.231
201809 44.787 252.439 59.249
201812 46.506 251.233 61.818
201903 49.653 254.202 65.230
201906 52.463 256.143 68.400
201909 50.978 256.759 66.304
201912 49.814 256.974 64.736
202003 47.910 258.115 61.986
202006 48.701 257.797 63.088
202009 52.025 260.280 66.751
202012 54.599 260.474 70.001
202103 55.464 264.877 69.928
202106 54.774 271.696 67.325
202109 56.505 274.310 68.791
202112 57.165 278.802 68.473
202203 59.788 287.504 69.447
202206 61.975 296.311 69.848
202209 59.423 296.808 66.859
202212 63.517 296.797 71.468
202303 67.977 301.836 75.210
202306 72.977 305.109 79.876
202309 75.191 307.789 81.582
202312 62.412 306.746 67.947
202403 66.289 312.332 70.878
202406 69.691 314.175 74.078
202409 75.192 315.301 79.640
202412 74.753 315.605 79.099
202503 79.300 319.799 82.809
202506 85.560 322.561 88.581
202509 87.397 324.800 89.860
202512 89.397 324.054 92.128
202603 89.507 330.213 90.520
202606 92.758 333.952 92.758

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 Cummins (CMI) Overvalued in 2026?

Based on GuruFocus' analysis, Cummins stock appears to be overvalued. The current stock price of $650.25 is trading 97% above its estimated GF Value™ of $330.11. GuruFocus considers Cummins to be Significantly Overvalued.

Key valuation signals for CMI:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $330.11 vs. price of $650.25 (97% above fair value)
  • GF Score™: 84/100 with 8 warning signs

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


Cummins Business Description

Address 500 Jackson Street, Box 3005, Columbus, IN, USA, 47202-3005
Cummins is a leading manufacturer of diesel and other engines used in heavy- and medium-duty commercial trucks, off-highway equipment, and locomotives, in addition to prime power and standby generators. The company also sells powertrain components, which include filtration products, transmissions, turbochargers, aftertreatment systems, and fuel systems. Sales are approximately 60% US and Canada and 40% rest of the world. Much of Cummins' foreign sales (China, India, and so forth) are through joint ventures. The company operates 650 distributors and over 19,000 dealer locations across 190 countries. Cummins' business model is unique as it competes with many of its heavy-duty truck manufacturer customers, which also make their own engines.
84GF Score

Get the complete analysis for CMI

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

$650.25
Price
$330.11
GF Value