Quest LaboratoriesNSE:QUESTLAB -1.56%44 PB Ratio is 1.67 as of Jun. 26, 2026, which is 24% below its 10-year median of 2.21. GuruFocus rates NSE:QUESTLAB with a GF Score™ of 44/100. The stock has 8 warning signs investors should review. Among 922 Drug Manufacturers companies, Quest Laboratories ranks better than 54.66% on this metric.
Quest Laboratories Ltd stock PB Ratio (=1.75) is close to 3-year low of 1.69.
The historical rank and industry rank for Quest Laboratories's PB Ratio or its related term are showing as below:
NSE:QUESTLAB'
s PB Ratio Range Over the Past 10 Years
Min: 1.66 Med: 2.21 Max: 9.07
Current: 1.66
During the past 6 years, Quest Laboratories's highest PB Ratio was 9.07. The lowest was 1.66. And the median was 2.21.
NSE:QUESTLAB's PB Ratio is ranked better than 54.66% of 922
companies
in the Drug Manufacturers industry
Industry Median: 1.825
vs NSE:QUESTLAB: 1.66
During the past 12 months, Quest Laboratories's average Book Value Per Share Growth Rate was 18.30% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 85.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 81.90% per year.
During the past 6 years, the highest 3-Year average Book Value Per Share Growth Rate of Quest Laboratories was 101.50% per year. The lowest was 69.50% per year. And the median was 85.70% per year.
Back to Basics: PB Ratio
Quest Laboratories (NSE:QUESTLAB) PB Ratio Explanation
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.
Quest Laboratories PB Ratio Related Terms
Quest Laboratories PB Ratio Historical Data
* Premium members only.
The historical data trend for Quest Laboratories'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.
NSE:QUESTLAB vs LLY, JNJ, ABBV: PB Ratio Comparison
For the Drug Manufacturers - General subindustry, Quest Laboratories'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.
Quest Laboratories PB Ratio vs Drug Manufacturers Industry
For the Drug Manufacturers industry and Healthcare sector, Quest Laboratories's PB Ratio distribution charts can be found below:
* The bar in red indicates where Quest Laboratories'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.
* 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.
Quest Laboratories (NSE:QUESTLAB) has a PB Ratio of 1.67 as of Jun. 26, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Quest Laboratories and its competitors. This is 24% below median its historical median of 2.21. Over the past decade, Quest Laboratories' PB Ratio has ranged from 1.66 to 9.07. According to the industry distribution chart, Quest Laboratories ranks #418 out of 922 companies in the Drug Manufacturers industry, placing it in the top 45.3%.
Is Quest Laboratories' PB Ratio too high?
Quest Laboratories' current PB Ratio of 1.67 is 24% below median its 10-year median of 2.21. Over the past 10 years, this metric has ranged from a low of 1.66 to a high of 9.07. The Drug Manufacturers industry median PB Ratio is 1.83. Quest Laboratories' value of 1.67 is 8.5% below this industry median. Based on the distribution chart, Quest Laboratories ranks #418 out of 922 companies in the Drug Manufacturers industry, which is above the industry midpoint. Overall, Quest Laboratories has a GF Score™ of 44/100, reflecting its overall financial health beyond just this single metric.
How does Quest Laboratories' PB Ratio compare to LLY and JNJ?
According to the Drug Manufacturers industry distribution chart, Quest Laboratories ranks #418 out of 922 companies for PB Ratio. This puts Quest Laboratories in the upper half of its industry. The industry median PB Ratio is 1.83. Quest Laboratories' value of 1.67 is 8.5% below this benchmark. Historically, Quest Laboratories' own PB Ratio has ranged from 1.66 to 9.07 over the past decade. While the company's 10-year median is 2.21 vs. the industry median of 1.83, Quest Laboratories 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 Drug Manufacturers company?
The median PB Ratio among Drug Manufacturers companies is 1.83, based on 922 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. Quest Laboratories's current PB Ratio of 1.67 is 8.5% 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 Quest Laboratories and its competitors. For the Drug Manufacturers industry, the median PB Ratio is 1.83 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Quest Laboratories's current PB Ratio is 1.67, which is 24% below median its own 10-year median of 2.21. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Quest Laboratories stock overvalued right now?
Quest Laboratories (NSE:QUESTLAB) has a current PB Ratio of 1.67. The current PB Ratio is 1.67, which is 24% below median its 10-year median of 2.21 and 8.5% below the Drug Manufacturers industry median of 1.83. Quest Laboratories' overall GF Score™ is 44/100 with 8 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 Quest Laboratories (NSE:QUESTLAB), the current PB Ratio is 1.67 as of Jun. 26, 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.
Quest Laboratories Ltd is engaged in the business of manufacturing pharmaceutical formulations across a broad spectrum, including antibiotics, antimalarials, antispasmodics, anti-inflammatories, antiemetics, respiratory medications, diabetes treatments, antidepressants, and more. It produces various products, comprising ethical drugs, generic drugs, and over-the-counter drugs, and is also available in various forms such as tablets, liquid orals, oral dry powders, oral powders (ORS), ointments, and external liquids, among others. The company operates in a single segment of Drugs and Chemicals.
44GF Score
Get the complete analysis for NSE:QUESTLAB
PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
NSE:QUESTLAB has been successfully added to your 