Aqua MetalsAQMS +3.48%25 PB Ratio is 0.76 as of Jun. 30, 2026, which is 56% below its 10-year median of 1.72. GuruFocus rates AQMS with a GF Score™ of 25/100. The stock has 3 warning signs investors should review. Among 228 Waste Management companies, Aqua Metals ranks better than 79.82% 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 (2026-06-30), Aqua Metals's share price is $2.97. Aqua Metals's Book Value per Share for the quarter that ended in Mar. 2026 was $3.92. Hence, Aqua Metals's PB Ratio of today is 0.76.
Warning Sign:
Aqua Metals Inc stock PB Ratio (=0.76) is close to 1-year high of 0.76.
The historical rank and industry rank for Aqua Metals's PB Ratio or its related term are showing as below:
AQMS'
s PB Ratio Range Over the Past 10 Years
Min: 0.07 Med: 1.72 Max: 12.43
Current: 0.76
During the past 12 years, Aqua Metals's highest PB Ratio was 12.43. The lowest was 0.07. And the median was 1.72.
AQMS's PB Ratio is ranked better than 79.82% of 228
companies
in the Waste Management industry
Industry Median: 1.6
vs AQMS: 0.76
During the past 12 months, Aqua Metals's average Book Value Per Share Growth Rate was -65.60% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was -54.60% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was -41.80% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -34.80% per year.
During the past 12 years, the highest 3-Year average Book Value Per Share Growth Rate of Aqua Metals was -18.50% per year. The lowest was -54.60% per year. And the median was -34.10% 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.
Aqua Metals PB Ratio Related Terms
Aqua Metals PB Ratio Historical Data
* Premium members only.
The historical data trend for Aqua Metals'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 Waste Management subindustry, Aqua Metals'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.
Aqua Metals PB Ratio vs Waste Management Industry
For the Waste Management industry and Industrials sector, Aqua Metals's PB Ratio distribution charts can be found below:
* The bar in red indicates where Aqua Metals'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.
Aqua Metals'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.
Aqua Metals (AQMS) has a PB Ratio of 0.76 as of Jun. 30, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Aqua Metals and its competitors. This is 56% below median its historical median of 1.72. Over the past decade, Aqua Metals' PB Ratio has ranged from 0.07 to 12.43. According to the industry distribution chart, Aqua Metals ranks #46 out of 228 companies in the Waste Management industry, placing it in the top 20.2%.
Is Aqua Metals' PB Ratio too high?
Aqua Metals' current PB Ratio of 0.76 is 56% below median its 10-year median of 1.72. Over the past 10 years, this metric has ranged from a low of 0.07 to a high of 12.43. The Waste Management industry median PB Ratio is 1.60. Aqua Metals' value of 0.76 is 52.5% below this industry median. Based on the distribution chart, Aqua Metals ranks #46 out of 228 companies in the Waste Management industry, which is in the top quartile — a strong position relative to peers. Overall, Aqua Metals has a GF Score™ of 25/100, reflecting its overall financial health beyond just this single metric.
How does Aqua Metals' PB Ratio compare to AWX and OCLN?
According to the Waste Management industry distribution chart, Aqua Metals ranks #46 out of 228 companies for PB Ratio. This places Aqua Metals in the top 20% of its industry — outperforming the majority of peers. The industry median PB Ratio is 1.60. Aqua Metals' value of 0.76 is 52.5% below this benchmark. Historically, Aqua Metals' own PB Ratio has ranged from 0.07 to 12.43 over the past decade. While the company's 10-year median is 1.72 vs. the industry median of 1.60, Aqua Metals has consistently been below 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 Waste Management company?
The median PB Ratio among Waste Management companies is 1.60, based on 228 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. Aqua Metals's current PB Ratio of 0.76 is 52.5% below 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 Aqua Metals and its competitors. For the Waste Management industry, the median PB Ratio is 1.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aqua Metals's current PB Ratio is 0.76, which is 56% below median its own 10-year median of 1.72. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aqua Metals stock overvalued right now?
Aqua Metals (AQMS) has a current PB Ratio of 0.76. The current PB Ratio is 0.76, which is 56% below median its 10-year median of 1.72 and 52.5% below the Waste Management industry median of 1.60. Aqua Metals' overall GF Score™ is 25/100 with 3 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 Aqua Metals (AQMS), the current PB Ratio is 0.76 as of Jun. 30, 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.
Aqua Metals Inc is developing and seeking to commercialize proprietary recycling and refining technologies for the recovery of critical minerals and metals. Its patented and patent-pending AquaRefining process is an electro-hydrometallurgical method designed to recover high-purity materials from battery and other metal-bearing feedstocks using a closed-loop system powered by electricity. Its idea is to reduce CAPEX and OPEX costs, reduce emissions, hazardous waste, and reliance on conventional smelting and chemical-intensive refining processes. It has one operating segment: sustainable metals recycling. It focused on the development and commercialization of AquaRefining technology for the clean and efficient recovery of valuable metals from lead-acid and lithium-ion batteries.
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