PDF Solutions (STU:PD9) Cyclically Adjusted PS Ratio: (As of Aug. 08, 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.
Reviewed by: Charlie Tian Charlie Tian
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.

STU:PD9 PDF Solutions Inc STU:PD9
82 GF Score
Price €40.20
GF Value €36.62
Valuation Fairly Valued
! 3 Warning Signs
View Full Analysis

What is PDF Solutions Cyclically Adjusted PS Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


PDF Solutions  (STU:PD9) Cyclically Adjusted PS Ratio Explanation

Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue 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 PS Ratio should give similar results to regular PS Ratio.


PDF Solutions Cyclically Adjusted PS Ratio Related Terms


PDF Solutions Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for PDF Solutions's Cyclically Adjusted PS 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.

PDF Solutions Cyclically Adjusted PS Ratio Chart

PDF Solutions Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 9.42 7.91 8.61 6.97 6.91

PDF Solutions Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PS 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 5.33 6.32 6.91 7.70 0.00

STU:PD9 vs INTA, EVCM, SPSC: Cyclically Adjusted PS Ratio Comparison

For the Software - Application subindustry, PDF Solutions's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS 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.


PDF Solutions Cyclically Adjusted PS Ratio vs Software Industry

For the Software industry and Technology sector, PDF Solutions's Cyclically Adjusted PS Ratio distribution charts can be found below:

* The bar in red indicates where PDF Solutions's Cyclically Adjusted PS Ratio falls into.


STU:PD9
82GF Score
PDF Solutions Inc STU:PD9
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

PDF Solutions Cyclically Adjusted PS Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS 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 PS Ratio.

PDF Solutions's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, PDF Solutions's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.278/333.9520*333.9520
=1.278

Current CPI (Jun. 2026) = 333.9520.

PDF Solutions Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 0.746 241.428 1.032
201612 0.810 241.432 1.120
201703 0.676 243.801 0.926
201706 0.647 244.955 0.882
201709 0.675 246.819 0.913
201712 0.708 246.524 0.959
201803 0.624 249.554 0.835
201806 0.566 251.989 0.750
201809 0.538 252.439 0.712
201812 0.536 251.233 0.712
201903 0.560 254.202 0.736
201906 0.563 256.143 0.734
201909 0.614 256.759 0.799
201912 0.626 256.974 0.814
202003 0.586 258.115 0.758
202006 0.578 257.797 0.749
202009 0.553 260.280 0.710
202012 0.500 260.474 0.641
202103 0.550 264.877 0.693
202106 0.615 271.696 0.756
202109 0.675 274.310 0.822
202112 0.708 278.802 0.848
202203 0.809 287.504 0.940
202206 0.886 296.311 0.999
202209 1.058 296.808 1.190
202212 1.023 296.797 1.151
202303 0.980 301.836 1.084
202306 0.983 305.109 1.076
202309 1.039 307.789 1.127
202312 0.972 306.746 1.058
202403 0.987 312.332 1.055
202406 0.989 314.175 1.051
202409 1.069 315.301 1.132
202412 1.223 315.605 1.294
202503 1.131 319.799 1.181
202506 1.142 322.561 1.182
202509 1.228 324.800 1.263
202512 1.348 324.054 1.389
202603 1.288 330.213 1.303
202606 1.278 333.952 1.278

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue 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 PDF Solutions (STU:PD9) Overvalued in 2026?

Based on GuruFocus' analysis, PDF Solutions stock appears to be overvalued. The current stock price of €40.20 is trading 9.8% above its estimated GF Value™ of €36.62. GuruFocus considers PDF Solutions to be Fairly Valued.

Key valuation signals for STU:PD9:

  • Cyclically Adjusted PS Ratio:
  • GF Value™: €36.62 vs. price of €40.20 (9.8% above fair value)
  • GF Score™: 82/100 with 3 warning signs

No single metric tells the full story. See the STU:PD9 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


PDF Solutions Business Description

Other Exchanges PDFS:USAPD9:Germany
Address 2858 De La Cruz Boulevard, Santa Clara, CA, USA, 95050
PDF Solutions Inc provides products and services designed to empower organizations across the semiconductor and electronics ecosystem to connect, collect, manage, and analyze data about design, equipment, manufacturing, and test to improve the yield and quality of their products and operational efficiency. The Company's products, services, and solutions include proprietary software, physical intellectual property (IP) for integrated circuit (IC) designs, electrical measurement hardware tools, methodologies, and professional services.
82GF Score

Get the complete analysis for STU:PD9

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

€40.20
Price
€36.62
GF Value