Acorn EnergyACFN -1.79%65 PB Ratio is 4.94 as of Jun. 25, 2026, which is 33% below its 10-year median of 7.36. GuruFocus rates ACFN with a GF Score™ of 65/100 and a GF Value™ of $13.60 (Modestly Overvalued). The stock has 4 warning signs investors should review. Among 2,412 Hardware companies, Acorn Energy ranks worse than 74.17% on this metric.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. As of today (2026-06-25), Acorn Energy's share price is $16.50. Acorn Energy's Book Value per Share for the quarter that ended in Mar. 2026 was $3.34. Hence, Acorn Energy's PB Ratio of today is 4.94.
The historical rank and industry rank for Acorn Energy's PB Ratio or its related term are showing as below:
ACFN'
s PB Ratio Range Over the Past 10 Years
Min: 3.23 Med: 7.36 Max: 165.43
Current: 4.94
During the past 13 years, Acorn Energy's highest PB Ratio was 165.43. The lowest was 3.23. And the median was 7.36.
ACFN's PB Ratio is ranked worse than 74.17% of 2412
companies
in the Hardware industry
Industry Median: 2.42
vs ACFN: 4.94
During the past 12 months, Acorn Energy's average Book Value Per Share Growth Rate was 37.30% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Acorn Energy was 206.70% per year. The lowest was -83.30% per year. And the median was -17.30% per year.
The PB Ratio works the best for the businesses that earn most of their profit from their assets, e.g. banks and insurance companies.
Be Aware
Some businesses have very light assets, such as software companies or insurance agencies. The PB Ratio does not work well for these companies. Some companies even have negative equity, so the PB Ratio cannot be applied to them.
Acorn Energy PB Ratio Related Terms
Acorn Energy PB Ratio Historical Data
* Premium members only.
The historical data trend for Acorn Energy's 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.
For the Scientific & Technical Instruments subindustry, Acorn Energy's PB Ratio, along with its competitors' market caps and 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.
Acorn Energy PB Ratio vs Hardware Industry
For the Hardware industry and Technology sector, Acorn Energy's PB Ratio distribution charts can be found below:
* The bar in red indicates where Acorn Energy's PB Ratio falls into.
The PB Ratio, or Price-to-Book ratio, or Price/Book, is a financial ratio used to compare a company's market price to its Book Value per Share. It is a ratio widely used to value stocks.
Acorn Energy's PB Ratio for today is calculated as follows:
* 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.
It can also be calculated from the numbers for the whole company:
A closely related ratio is called Price-to-Tangible-Book. The difference between Price-to-Tangible-Book and PB Ratio is that book value other than intangibles are used in the calculation.
Acorn Energy (ACFN) has a PB Ratio of 4.94 as of Jun. 25, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Acorn Energy and its competitors. This is 33% below median its historical median of 7.36. Over the past decade, Acorn Energy's PB Ratio has ranged from 3.23 to 165.43. According to the industry distribution chart, Acorn Energy ranks #1789 out of 2412 companies in the Hardware industry, placing it in the top 74.2%.
Is Acorn Energy's PB Ratio too high?
Acorn Energy's current PB Ratio of 4.94 is 33% below median its 10-year median of 7.36. Over the past 10 years, this metric has ranged from a low of 3.23 to a high of 165.43. The Hardware industry median PB Ratio is 2.42. Acorn Energy's value of 4.94 is 104.1% above this industry median. Based on the distribution chart, Acorn Energy ranks #1789 out of 2412 companies in the Hardware industry, which is below the industry midpoint. Overall, Acorn Energy has a GF Score™ of 65/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Acorn Energy's PB Ratio compare to LGL and ARAI?
According to the Hardware industry distribution chart, Acorn Energy ranks #1789 out of 2412 companies for PB Ratio. This places Acorn Energy in the lower half of its industry. The industry median PB Ratio is 2.42. Acorn Energy's value of 4.94 is 104.1% above this benchmark. Historically, Acorn Energy's own PB Ratio has ranged from 3.23 to 165.43 over the past decade. While the company's 10-year median is 7.36 vs. the industry median of 2.42, Acorn Energy 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 PB Ratio for a Hardware company?
The median PB Ratio among Hardware companies is 2.42, based on 2,412 companies in the industry. Companies in the top quartile (top 25%) have a PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Acorn Energy's current PB Ratio of 4.94 is 104.1% 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 PB Ratio mean?
A high PB Ratio can signal that a stock is expensive relative to its fundamentals. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Acorn Energy and its competitors. For the Hardware industry, the median PB Ratio is 2.42 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Acorn Energy's current PB Ratio is 4.94, which is 33% below median its own 10-year median of 7.36. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Acorn Energy stock overvalued right now?
Based on GuruFocus' analysis, Acorn Energy (ACFN) is currently considered Modestly Overvalued. The stock's GF Value™ is $13.60, compared to a current price of $16.50 — trading 21.3% above its estimated fair value. The current PB Ratio is 4.94, which is 33% below median its 10-year median of 7.36 and 104.1% above the Hardware industry median of 2.42. Acorn Energy's overall GF Score™ is 65/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is PB Ratio calculated?
PB Ratio is calculated from a company's financial statements. For Acorn Energy (ACFN), the current PB Ratio is 4.94 as of Jun. 25, 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 Acorn Energy (ACFN) Overvalued in 2026?
Based on GuruFocus' analysis, Acorn Energy stock appears to be overvalued.
The current stock price of $16.50 is trading 21.3% above its estimated GF Value™ of $13.60.
GuruFocus considers Acorn Energy to be Modestly Overvalued.
Key valuation signals for ACFN:
PB Ratio: 4.94 (33% below median its 10-year median of 7.36)
GF Value™: $13.60 vs. price of $16.50 (21.3% above fair value)
Industry Position: 104.1% above the Hardware median (#1789 of 2412)
No single metric tells the full story. See the ACFN stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Acorn Energy Inc is a holding company that focuses on technology-driven solutions for energy infrastructure asset management. The company operates through two segments namely, the PG segment and the CP segment. PG segment provides wireless remote monitoring and control systems and services for critical assets as well as Internet of Things applications which account for the majority of the revenue. CP segment is engaged in providing remote monitoring of cathodic protection systems on gas pipelines for gas utilities and pipeline companies.
65GF Score
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