DAIO (Data I/O) Cyclically Adjusted Book per Share: $2.71 (As of Mar. 2026)


DAIO Data I/O Corp DAIO
55 GF Score
Price $3.76
GF Value $2.38
Valuation Significantly Overvalued
! 4 Warning Signs
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What is Data I/O Cyclically Adjusted Book per Share?

Data I/O DAIO +1.08% 55 Cyclically Adjusted Book per Share is $2.71 as of Mar. 2026. GuruFocus rates DAIO with a GF Score™ of 55/100 and a GF Value™ of $2.38 (Significantly Overvalued). The stock has 4 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Data I/O's adjusted book value per share for the three months ended in Mar. 2026 was $1.114. 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 $2.71 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Data I/O's average Cyclically Adjusted Book Growth Rate was -0.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 2.20% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 2.10% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Data I/O was 4.40% per year. The lowest was -10.30% per year. And the median was 1.10% per year.

As of today (2026-06-27), Data I/O's current stock price is $3.76. Data I/O's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $2.71. Data I/O's Cyclically Adjusted PB Ratio of today is 1.39.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Data I/O was 6.48. The lowest was 0.73. And the median was 1.63.


Data I/O  (NAS:DAIO) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

Data I/O's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=3.76/2.71
=1.39

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Data I/O was 6.48. The lowest was 0.73. And the median was 1.63.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Data I/O Cyclically Adjusted Book per Share Related Terms


Data I/O Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Data I/O's Cyclically Adjusted Book per Share 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.

Data I/O Cyclically Adjusted Book per Share Chart

Data I/O Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.49 2.56 2.63 2.69 2.69

Data I/O Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share 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 2.72 2.73 2.72 2.69 2.71

DAIO vs IEHC, HOLO, NEON: Cyclically Adjusted Book per Share Comparison

For the Electronic Components subindustry, Data I/O'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.


Data I/O Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Data I/O's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


DAIO
55GF Score
Data I/O Corp DAIO
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Data I/O Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

For example, Data I/O's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=1.114/330.2130*330.2130
=1.114

Current CPI (Mar. 2026) = 330.2130.

Data I/O Quarterly Data

Book Value per Share CPI Adj_Book
201606 1.878 241.018 2.573
201609 1.964 241.428 2.686
201612 2.000 241.432 2.735
201703 2.124 243.801 2.877
201706 2.256 244.955 3.041
201709 2.449 246.819 3.276
201712 2.665 246.524 3.570
201803 2.732 249.554 3.615
201806 2.690 251.989 3.525
201809 2.728 252.439 3.568
201812 2.801 251.233 3.682
201903 2.834 254.202 3.681
201906 2.751 256.143 3.547
201909 2.610 256.759 3.357
201912 2.621 256.974 3.368
202003 2.550 258.115 3.262
202006 2.420 257.797 3.100
202009 2.438 260.280 3.093
202012 2.334 260.474 2.959
202103 2.305 264.877 2.874
202106 2.262 271.696 2.749
202109 2.287 274.310 2.753
202112 2.303 278.802 2.728
202203 2.118 287.504 2.433
202206 1.969 296.311 2.194
202209 2.033 296.808 2.262
202212 2.168 296.797 2.412
202303 2.214 301.836 2.422
202306 2.161 305.109 2.339
202309 2.174 307.789 2.332
202312 2.252 306.746 2.424
202403 2.175 312.332 2.300
202406 2.052 314.175 2.157
202409 2.078 315.301 2.176
202412 1.908 315.605 1.996
202503 1.899 319.799 1.961
202506 1.840 322.561 1.884
202509 1.705 324.800 1.733
202512 1.439 324.054 1.466
202603 1.114 330.213 1.114

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of $2.71 mean?
Data I/O (DAIO) has a Cyclically Adjusted Book per Share of $2.71 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Data I/O and its competitors.
Is Data I/O's Cyclically Adjusted Book per Share too high?
Data I/O's current Cyclically Adjusted Book per Share is $2.71. Overall, Data I/O has a GF Score™ of 55/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Data I/O's Cyclically Adjusted Book per Share compare to IEHC and HOLO?
Data I/O's Cyclically Adjusted Book per Share of $2.71 can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Data I/O and its competitors. Data I/O's current Cyclically Adjusted Book per Share is $2.71. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Data I/O stock overvalued right now?
Based on GuruFocus' analysis, Data I/O (DAIO) is currently considered Significantly Overvalued. The stock's GF Value™ is $2.38, compared to a current price of $3.76 — trading 58% above its estimated fair value. The current Cyclically Adjusted Book per Share is $2.71. Data I/O's overall GF Score™ is 55/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Data I/O (DAIO), the current Cyclically Adjusted Book per Share is $2.71 as of Mar. 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 Data I/O (DAIO) Overvalued in 2026?

Based on GuruFocus' analysis, Data I/O stock appears to be overvalued. The current stock price of $3.76 is trading 58% above its estimated GF Value™ of $2.38. GuruFocus considers Data I/O to be Significantly Overvalued.

Key valuation signals for DAIO:

  • Cyclically Adjusted Book per Share: $2.71
  • GF Value™: $2.38 vs. price of $3.76 (58% above fair value)
  • GF Score™: 55/100 with 4 warning signs

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


Data I/O Business Description

Address 6645 185th Avenue NE, Suite 100, Redmond, WA, USA, 98052
Data I/O Corp provides semiconductor programming, security provisioning, and intellectual property protection and management solutions used in electronics manufacturing with flash memory, microcontrollers, and flash memory-based intelligent devices as well as secure element devices, authentication devices and secure microcontrollers. It operates as a single segment entity, with the sole objective to design, manufacture, and sell programming solutions and Programming-as-a-Service (PaaS) to the world's various electronics manufacturers including OEMs, CMs and EMS companies. The company operate in three separate locations Redmond, Washington; Shanghai, China; and Munich, Germany.
55GF Score

Get the complete analysis for DAIO

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

$3.76
Price
$2.38
GF Value