I'll (TSE:3854) Cyclically Adjusted PB Ratio: 9.12 (As of Sep. 13, 2026) — 43% Below Median

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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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.

TSE:3854 I'll Inc TSE:3854
84 GF Score
Price 円2,121.00
GF Value 円3,061.90
Valuation Significantly Undervalued
! 1 Warning Sign
View Full Analysis

What is I'll Cyclically Adjusted PB Ratio?

I'll TSE:3854 -0.38% 84 Cyclically Adjusted PB Ratio is 9.12 as of Sep. 13, 2026, which is 43% below its 10-year median of 16.06. GuruFocus rates TSE:3854 with a GF Score™ of 84/100 and a GF Value™ of 円3,061.90 (Significantly Undervalued). The stock has 1 warning sign investors should review. Among 1,464 Software companies, I'll ranks worse than 88.8% on this metric.

As of today (2026-09-13), I'll's current share price is 円2121.00. I'll's Cyclically Adjusted Book per Share for the quarter that ended in Apr. 2026 was 円232.63. I'll's Cyclically Adjusted PB Ratio for today is 9.12.

The historical rank and industry rank for I'll's Cyclically Adjusted PB Ratio or its related term are showing as below:

TSE:3854' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 6.97   Med: 16.06   Max: 31.69
Current: 9.12

During the past years, I'll's highest Cyclically Adjusted PB Ratio was 31.69. The lowest was 6.97. And the median was 16.06.

TSE:3854's Cyclically Adjusted PB Ratio is ranked worse than
88.8% of 1464 companies
in the Software industry
Industry Median: 2.34 vs TSE:3854: 9.12

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

I'll's adjusted book value per share data for the three months ended in Apr. 2026 was 円500.872. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is 円232.63 for the trailing ten years ended in Apr. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


I'll  (TSE:3854) 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.


I'll Cyclically Adjusted PB Ratio Related Terms


I'll Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for I'll'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.

I'll Cyclically Adjusted PB Ratio Chart

I'll Annual Data
Trend Jul17 Jul18 Jul19 Jul20 Jul21 Jul22 Jul23 Jul24 Jul25 Jul26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 15.13 19.40 16.33 14.06 0.00

I'll Quarterly Data
Oct21 Jan22 Apr22 Jul22 Oct22 Jan23 Apr23 Jul23 Oct23 Jan24 Apr24 Jul24 Oct24 Jan25 Apr25 Jul25 Oct25 Jan26 Apr26 Jul26
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 14.06 11.52 11.18 10.24 0.00

TSE:3854 vs IBM, ACN, CTSH: Cyclically Adjusted PB Ratio Comparison

For the Information Technology Services subindustry, I'll'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.


I'll Cyclically Adjusted PB Ratio vs Software Industry

For the Software industry and Technology sector, I'll's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TSE:3854
84GF Score
I'll Inc TSE:3854
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

I'll 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.

I'll's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=2121.00/232.63
=9.12

* 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.

I'll's Cyclically Adjusted Book per Share for the quarter that ended in Apr. 2026 is calculated as:

For example, I'll's adjusted Book Value per Share data for the three months ended in Apr. 2026 was:

Adj_Book=Book Value per Share/CPI of Apr. 2026 (Change)*Current CPI (Apr. 2026)
=500.872/113.0000*113.0000
=500.872

Current CPI (Apr. 2026) = 113.0000.

I'll Quarterly Data

Book Value per Share CPI Adj_Book
201607 75.769 97.900 87.456
201610 70.810 98.600 81.151
201701 76.933 98.200 88.528
201704 81.431 98.500 93.418
201707 86.060 98.300 98.930
201710 85.103 98.800 97.334
201801 87.697 99.500 99.596
201804 91.840 99.100 104.722
201807 95.736 99.200 109.054
201810 94.761 100.200 106.866
201901 101.132 99.700 114.623
201904 105.187 100.000 118.861
201907 113.868 99.800 128.929
201910 130.900 100.400 147.328
202001 135.922 100.500 152.828
202004 142.997 100.200 161.264
202007 148.330 100.000 167.613
202010 155.256 99.800 175.791
202101 166.437 99.800 188.451
202104 168.841 99.100 192.523
202107 183.325 99.700 207.781
202110 189.413 99.900 214.251
202201 203.394 100.300 229.148
202204 212.858 101.500 236.975
202207 228.305 102.300 252.184
202210 236.986 103.700 258.239
202301 262.298 104.700 283.091
202304 276.120 105.100 296.875
202307 309.208 105.700 330.563
202310 318.638 107.100 336.191
202401 347.976 106.900 367.832
202404 359.330 107.700 377.013
202407 386.748 108.600 402.417
202410 391.225 109.500 403.730
202501 305.813 111.200 310.763
202504 371.990 111.500 376.994
202507 450.953 111.900 455.386
202510 453.786 112.800 454.591
202601 494.647 112.900 495.085
202604 500.872 113.000 500.872

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.

What does a Cyclically Adjusted PB Ratio of 9.12 mean?
I'll (TSE:3854) has a Cyclically Adjusted PB Ratio of 9.12 as of Sep. 13, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on I'll and its competitors. This is 43% below median its historical median of 16.06. Over the past decade, I'll's Cyclically Adjusted PB Ratio has ranged from 6.97 to 31.69. According to the industry distribution chart, I'll ranks #1300 out of 1464 companies in the Software industry, placing it in the top 88.8%.
Is I'll's Cyclically Adjusted PB Ratio too high?
I'll's current Cyclically Adjusted PB Ratio of 9.12 is 43% below median its 10-year median of 16.06. Over the past 10 years, this metric has ranged from a low of 6.97 to a high of 31.69. The Software industry median Cyclically Adjusted PB Ratio is 2.34. I'll's value of 9.12 is 289.7% above this industry median. Based on the distribution chart, I'll ranks #1300 out of 1464 companies in the Software industry, which is in the bottom quartile relative to peers. Overall, I'll has a GF Score™ of 84/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does I'll's Cyclically Adjusted PB Ratio compare to IBM and ACN?
According to the Software industry distribution chart, I'll ranks #1300 out of 1464 companies for Cyclically Adjusted PB Ratio. This places I'll in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 2.34. I'll's value of 9.12 is 289.7% above this benchmark. Historically, I'll's own Cyclically Adjusted PB Ratio has ranged from 6.97 to 31.69 over the past decade. While the company's 10-year median is 16.06 vs. the industry median of 2.34, I'll has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PB Ratio for a Software company?
The median Cyclically Adjusted PB Ratio among Software companies is 2.34, based on 1,464 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. I'll's current Cyclically Adjusted PB Ratio of 9.12 is 289.7% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on I'll and its competitors. For the Software industry, the median Cyclically Adjusted PB Ratio is 2.34 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. I'll's current Cyclically Adjusted PB Ratio is 9.12, which is 43% below median its own 10-year median of 16.06. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is I'll stock overvalued right now?
Based on GuruFocus' analysis, I'll (TSE:3854) is currently considered Significantly Undervalued. The stock's GF Value™ is 円3,061.90, compared to a current price of 円2,121.00 — trading 30.7% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 9.12, which is 43% below median its 10-year median of 16.06 and 289.7% above the Software industry median of 2.34. I'll's overall GF Score™ is 84/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For I'll (TSE:3854), the current Cyclically Adjusted PB Ratio is 9.12 as of Sep. 13, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is I'll (TSE:3854) Overvalued in 2026?

Based on GuruFocus' analysis, I'll stock appears to be undervalued. The current stock price of 円2,121.00 is trading 30.7% below its estimated GF Value™ of 円3,061.90. GuruFocus considers I'll to be Significantly Undervalued.

Key valuation signals for TSE:3854:

  • Cyclically Adjusted PB Ratio: 9.12 (43% below median its 10-year median of 16.06)
  • GF Value™: 円3,061.90 vs. price of 円2,121.00 (30.7% below fair value)
  • GF Score™: 84/100 with 1 warning sign
  • Industry Position: 289.7% above the Software median (#1300 of 1464)

No single metric tells the full story. See the TSE:3854 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


I'll Business Description

Address 2-1-23, Kita-ku, Osaka, JPN
I'll Inc is engaged in the provision of system integration services for medium and small size companies. The company is engaged in two divisions namely System solution business, and Web solution business. The system solution provides customers with basic system construction, hardware maintenance, system operation support, network construction, and security management, and the Web solution offers website creation and operation, customer business analysis, and others. It is also develops unified management software, point unified management software and other operations.
84GF Score

Get the complete analysis for TSE:3854

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

円2,121.00
Price
円3,061.90
GF Value