IRBTQ (iRobot) Cyclically Adjusted PB Ratio: (As of Sep. 21, 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.
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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.

What is iRobot Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


iRobot  (OTCPK:IRBTQ) 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.


iRobot Cyclically Adjusted PB Ratio Related Terms


iRobot Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for iRobot'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.

iRobot Cyclically Adjusted PB Ratio Chart

iRobot Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 4.73 3.34 2.24 1.81 0.38

iRobot Quarterly Data
Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25
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 0.41 0.37 0.13 0.15 0.18

IRBTQ vs LUVU, LBRA, NCL: Cyclically Adjusted PB Ratio Comparison

For the Furnishings, Fixtures & Appliances subindustry, iRobot'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.


iRobot Cyclically Adjusted PB Ratio vs Furnishings, Fixtures & Appliances Industry

For the Furnishings, Fixtures & Appliances industry and Consumer Cyclical sector, iRobot's Cyclically Adjusted PB Ratio distribution charts can be found below:

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



iRobot 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.

iRobot's Cyclically Adjusted Book per Share for the quarter that ended in Sep. 2025 is calculated as:

For example, iRobot's adjusted Book Value per Share data for the three months ended in Sep. 2025 was:

Adj_Book=Book Value per Share/CPI of Sep. 2025 (Change)*Current CPI (Sep. 2025)
=-0.845/324.8000*324.8000
=-0.845

Current CPI (Sep. 2025) = 324.8000.

iRobot Quarterly Data

Book Value per Share CPI Adj_Book
201512 14.348 236.525 19.703
201603 14.293 238.132 19.495
201606 12.493 241.018 16.836
201609 13.515 241.428 18.182
201612 14.280 241.432 19.211
201703 14.902 243.801 19.853
201706 15.403 244.955 20.424
201709 16.377 246.819 21.551
201712 16.830 246.524 22.174
201803 17.691 249.554 23.025
201806 16.716 251.989 21.546
201809 18.199 252.439 23.416
201812 19.264 251.233 24.905
201903 20.066 254.202 25.639
201906 20.609 256.143 26.133
201909 22.053 256.759 27.897
201912 22.999 256.974 29.069
202003 22.117 258.115 27.831
202006 24.361 257.797 30.693
202009 27.806 260.280 34.699
202012 28.543 260.474 35.592
202103 29.019 264.877 35.584
202106 27.851 271.696 33.295
202109 27.474 274.310 32.531
202112 26.539 278.802 30.918
202203 25.638 287.504 28.964
202206 24.855 296.311 27.245
202209 20.541 296.808 22.478
202212 17.347 296.797 18.984
202303 14.331 301.836 15.421
202306 11.750 305.109 12.508
202309 9.075 307.789 9.577
202312 7.026 306.746 7.440
202403 7.096 312.332 7.379
202406 4.956 314.175 5.124
202409 4.914 315.301 5.062
202412 1.999 315.605 2.057
202503 -0.025 319.799 -0.025
202506 -0.246 322.561 -0.248
202509 -0.845 324.800 -0.845

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.


iRobot Business Description

Address 8 Crosby Drive, Bedford, MA, USA, 01730
iRobot Corp is a United state based consumer robot company. It designs and builds robots that assist consumers with the solutions for the activities to be carried out both inside and outside of the home. The company's consumer robot comprises a portfolio of solutions which includes cleaning, mapping and navigation, human-robot interaction, and physical solutions. The company operates in the business segment of Consumer robots. The consumer robot products are provided to the consumers by retail businesses and online stores. The company derives its revenue from the product sales. It sells the products across the United States and around the world.