DAIO (Data I/O) Shiller PE Ratio: (As of Aug. 26, 2026)

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Director of Data and Quant Analytics at GuruFocus
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DAIO Data I/O Corp DAIO
58 GF Score
Price $2.91
GF Value $2.29
Valuation Modestly Overvalued
! 4 Warning Signs
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What is Data I/O Shiller PE Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Data I/O  (NAS:DAIO) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Data I/O Shiller PE Ratio Related Terms


Data I/O Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Data I/O's Shiller PE 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.

Data I/O Shiller PE Ratio Chart

Data I/O Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 169.07 40.42 125.24 0.00

Data I/O Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE 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 394.78 0.00 0.00 0.00 0.00

DAIO vs HOLO, REFR, WETH: Shiller PE Ratio Comparison

For the Electronic Components subindustry, Data I/O's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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 Shiller PE Ratio vs Hardware Industry

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

* The bar in red indicates where Data I/O's Shiller PE Ratio falls into.


DAIO
58GF Score
Data I/O Corp DAIO
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Data I/O Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Data I/O's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, Data I/O's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=-0.17/333.9520*333.9520
=-0.170

Current CPI (Jun. 2026) = 333.9520.

Data I/O Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 0.080 241.428 0.111
201612 0.090 241.432 0.124
201703 0.120 243.801 0.164
201706 0.140 244.955 0.191
201709 0.200 246.819 0.271
201712 0.180 246.524 0.244
201803 0.020 249.554 0.027
201806 0.060 251.989 0.080
201809 0.040 252.439 0.053
201812 0.080 251.233 0.106
201903 0.003 254.202 0.004
201906 0.020 256.143 0.026
201909 -0.100 256.759 -0.130
201912 -0.060 256.974 -0.078
202003 -0.070 258.115 -0.091
202006 -0.130 257.797 -0.168
202009 -0.090 260.280 -0.115
202012 -0.200 260.474 -0.256
202103 -0.040 264.877 -0.050
202106 -0.003 271.696 -0.004
202109 0.001 274.310 0.001
202112 -0.020 278.802 -0.024
202203 -0.210 287.504 -0.244
202206 -0.080 296.311 -0.090
202209 0.100 296.808 0.113
202212 0.060 296.797 0.068
202303 0.010 301.836 0.011
202306 0.030 305.109 0.033
202309 -0.010 307.789 -0.011
202312 0.020 306.746 0.022
202403 -0.090 312.332 -0.096
202406 -0.090 314.175 -0.096
202409 -0.030 315.301 -0.032
202412 -0.130 315.605 -0.138
202503 -0.040 319.799 -0.042
202506 -0.080 322.561 -0.083
202509 -0.150 324.800 -0.154
202512 -0.270 324.054 -0.278
202603 -0.340 330.213 -0.344
202606 -0.170 333.952 -0.170

Add all the adjusted EPS together and divide 10 will get our E10.

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 Data I/O (DAIO) Overvalued in 2026?

Based on GuruFocus' analysis, Data I/O stock appears to be overvalued. The current stock price of $2.91 is trading 27.1% above its estimated GF Value™ of $2.29. GuruFocus considers Data I/O to be Modestly Overvalued.

Key valuation signals for DAIO:

  • Shiller PE Ratio:
  • GF Value™: $2.29 vs. price of $2.91 (27.1% above fair value)
  • GF Score™: 58/100 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.
58GF Score

Get the complete analysis for DAIO

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

$2.91
Price
$2.29
GF Value