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Aehr Test SystemsFRA:AYB -9.16%64 Cyclically Adjusted PB Ratio is 39.48 as of Jul. 24, 2026, which is 631% above its 10-year median of 5.40. GuruFocus rates FRA:AYB with a GF Score™ of 64/100 and a GF Value™ of €11.96 (Significantly Overvalued). The stock has 6 warning signs investors should review. Among 735 Semiconductors companies, Aehr Test Systems ranks worse than 97.82% on this metric.
The historical rank and industry rank for Aehr Test Systems's Cyclically Adjusted PB Ratio or its related term are showing as below:
FRA:AYB'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.08 Med: 5.4 Max: 55.82
Current: 42.36
During the past years, Aehr Test Systems's highest Cyclically Adjusted PB Ratio was 55.82. The lowest was 1.08. And the median was 5.40.
FRA:AYB's Cyclically Adjusted PB Ratio is ranked worse than 97.82% of 735
companies
in the Semiconductors industry
Industry Median: 3.16
vs FRA:AYB: 42.36
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.
Aehr Test Systems's adjusted book value per share data for the three months ended in May. 2026 was €5.785. 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 €1.97 for the trailing ten years ended in May. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Aehr Test Systems (FRA:AYB) 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.
Aehr Test Systems Cyclically Adjusted PB Ratio Related Terms
Aehr Test Systems Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Aehr Test Systems'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.
Aehr Test Systems Cyclically Adjusted PB Ratio Chart
FRA:AYB vs COHU, AMBA, ICHR: Cyclically Adjusted PB Ratio Comparison
For the Semiconductor Equipment & Materials subindustry, Aehr Test Systems'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.
Aehr Test Systems Cyclically Adjusted PB Ratio vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Aehr Test Systems's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Aehr Test Systems's Cyclically Adjusted PB Ratio falls into.
Aehr Test Systems 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.
Aehr Test Systems's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
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 39.48 mean?
Aehr Test Systems (FRA:AYB) has a Cyclically Adjusted PB Ratio of 39.48 as of Jul. 24, 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 Aehr Test Systems and its competitors. This is 631% above median its historical median of 5.40. Over the past decade, Aehr Test Systems' Cyclically Adjusted PB Ratio has ranged from 1.08 to 55.82. According to the industry distribution chart, Aehr Test Systems ranks #719 out of 735 companies in the Semiconductors industry, placing it in the top 97.8%.
Is Aehr Test Systems' Cyclically Adjusted PB Ratio too high?
Aehr Test Systems' current Cyclically Adjusted PB Ratio of 39.48 is 631% above median its 10-year median of 5.40. Over the past 10 years, this metric has ranged from a low of 1.08 to a high of 55.82. The Semiconductors industry median Cyclically Adjusted PB Ratio is 3.16. Aehr Test Systems' value of 39.48 is 1149.4% above this industry median. Based on the distribution chart, Aehr Test Systems ranks #719 out of 735 companies in the Semiconductors industry, which is in the bottom quartile relative to peers. Overall, Aehr Test Systems has a GF Score™ of 64/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Aehr Test Systems' Cyclically Adjusted PB Ratio compare to COHU and AMBA?
According to the Semiconductors industry distribution chart, Aehr Test Systems ranks #719 out of 735 companies for Cyclically Adjusted PB Ratio. This places Aehr Test Systems in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 3.16. Aehr Test Systems' value of 39.48 is 1149.4% above this benchmark. Historically, Aehr Test Systems' own Cyclically Adjusted PB Ratio has ranged from 1.08 to 55.82 over the past decade. While the company's 10-year median is 5.40 vs. the industry median of 3.16, Aehr Test Systems 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 Semiconductors company?
The median Cyclically Adjusted PB Ratio among Semiconductors companies is 3.16, based on 735 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. Aehr Test Systems's current Cyclically Adjusted PB Ratio of 39.48 is 1149.4% 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 Aehr Test Systems and its competitors. For the Semiconductors industry, the median Cyclically Adjusted PB Ratio is 3.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aehr Test Systems's current Cyclically Adjusted PB Ratio is 39.48, which is 631% above median its own 10-year median of 5.40. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aehr Test Systems stock overvalued right now?
Based on GuruFocus' analysis, Aehr Test Systems (FRA:AYB) is currently considered Significantly Overvalued. The stock's GF Value™ is €11.96, compared to a current price of €77.78 — trading 550.3% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 39.48, which is 631% above median its 10-year median of 5.40 and 1149.4% above the Semiconductors industry median of 3.16. Aehr Test Systems' overall GF Score™ is 64/100 with 6 warning signs 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 Aehr Test Systems (FRA:AYB), the current Cyclically Adjusted PB Ratio is 39.48 as of Jul. 24, 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 Aehr Test Systems (FRA:AYB) Overvalued in 2026?
Based on GuruFocus' analysis, Aehr Test Systems stock appears to be overvalued.
The current stock price of €77.78 is trading 550.3% above its estimated GF Value™ of €11.96.
GuruFocus considers Aehr Test Systems to be Significantly Overvalued.
Key valuation signals for FRA:AYB:
Cyclically Adjusted PB Ratio: 39.48 (631% above median its 10-year median of 5.40)
GF Value™: €11.96 vs. price of €77.78 (550.3% above fair value)
Industry Position: 1149.4% above the Semiconductors median (#719 of 735)
No single metric tells the full story. See the FRA:AYB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Aehr Test Systems is engaged in test systems for burning-in and testing logic, optical, and memory integrated circuits. Increased quality and reliability needs of the Automotive and Mobility integrated circuit markets. The Company operates in one business segment, the designing, manufacturing, marketing and selling of advanced test and burn-in products to the semiconductor manufacturing industry in several geographic areas. The company provides production solutions across the product manufacturing flow to improve yield and reliability and has developed and introduced several inventive products, including the ABTSTM and FOX-PTM families of test and burn-in systems and FOX WaferPakTM Aligner, FOX-XP WaferPak Contactor, FOX DiePak Carrier and FOX DiePak Loader.
64GF Score
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