Spark New ZealandASX:SPK -2.03%67 PB Ratio is 2.32 as of Jun. 24, 2026, which is 51% below its 10-year median of 4.75. GuruFocus rates ASX:SPK with a GF Score™ of 67/100 and a GF Value™ of A$2.70 (Significantly Undervalued). The stock has 8 warning signs investors should review. Among 342 Telecommunication Services companies, Spark New Zealand ranks worse than 63.74% on this metric.
The historical rank and industry rank for Spark New Zealand's PB Ratio or its related term are showing as below:
ASX:SPK'
s PB Ratio Range Over the Past 10 Years
Min: 2.28 Med: 4.75 Max: 6.92
Current: 2.5
During the past 13 years, Spark New Zealand's highest PB Ratio was 6.92. The lowest was 2.28. And the median was 4.75.
ASX:SPK's PB Ratio is ranked worse than 63.74% of 342
companies
in the Telecommunication Services industry
Industry Median: 1.87
vs ASX:SPK: 2.50
During the past 12 months, Spark New Zealand's average Book Value Per Share Growth Rate was -8.00% per year.
During the past 3 years, the average Book Value Per Share Growth Rate was 0.70% per year.
During the past 5 years, the average Book Value Per Share Growth Rate was 1.40% per year.
During the past 10 years, the average Book Value Per Share Growth Rate was -0.70% per year.
During the past 13 years, the highest 3-Year average Book Value Per Share Growth Rate of Spark New Zealand was 34.00% per year. The lowest was -16.60% per year. And the median was -0.75% 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.
Spark New Zealand PB Ratio Related Terms
Spark New Zealand PB Ratio Historical Data
* Premium members only.
The historical data trend for Spark New Zealand'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 Telecom Services subindustry, Spark New Zealand'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.
Spark New Zealand PB Ratio vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Spark New Zealand's PB Ratio distribution charts can be found below:
* The bar in red indicates where Spark New Zealand'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.
Spark New Zealand (ASX:SPK) has a PB Ratio of 2.32 as of Jun. 24, 2026. Price-to-Book ratio is the ratio of share price to a company's book value per share. View historical data on Spark New Zealand and its competitors. This is 51% below median its historical median of 4.75. Over the past decade, Spark New Zealand's PB Ratio has ranged from 2.28 to 6.92. According to the industry distribution chart, Spark New Zealand ranks #218 out of 342 companies in the Telecommunication Services industry, placing it in the top 63.7%.
Is Spark New Zealand's PB Ratio too high?
Spark New Zealand's current PB Ratio of 2.32 is 51% below median its 10-year median of 4.75. Over the past 10 years, this metric has ranged from a low of 2.28 to a high of 6.92. The Telecommunication Services industry median PB Ratio is 1.87. Spark New Zealand's value of 2.32 is 24.1% above this industry median. Based on the distribution chart, Spark New Zealand ranks #218 out of 342 companies in the Telecommunication Services industry, which is below the industry midpoint. Overall, Spark New Zealand has a GF Score™ of 67/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Spark New Zealand's PB Ratio compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, Spark New Zealand ranks #218 out of 342 companies for PB Ratio. This places Spark New Zealand in the lower half of its industry. The industry median PB Ratio is 1.87. Spark New Zealand's value of 2.32 is 24.1% above this benchmark. Historically, Spark New Zealand's own PB Ratio has ranged from 2.28 to 6.92 over the past decade. While the company's 10-year median is 4.75 vs. the industry median of 1.87, Spark New Zealand 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 Telecommunication Services company?
The median PB Ratio among Telecommunication Services companies is 1.87, based on 342 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. Spark New Zealand's current PB Ratio of 2.32 is 24.1% 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 Spark New Zealand and its competitors. For the Telecommunication Services industry, the median PB Ratio is 1.87 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Spark New Zealand's current PB Ratio is 2.32, which is 51% below median its own 10-year median of 4.75. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Spark New Zealand stock overvalued right now?
Based on GuruFocus' analysis, Spark New Zealand (ASX:SPK) is currently considered Significantly Undervalued. The stock's GF Value™ is A$2.70, compared to a current price of A$1.45 — trading 46.3% below its estimated fair value. The current PB Ratio is 2.32, which is 51% below median its 10-year median of 4.75 and 24.1% above the Telecommunication Services industry median of 1.87. Spark New Zealand's overall GF Score™ is 67/100 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 Spark New Zealand (ASX:SPK), the current PB Ratio is 2.32 as of Jun. 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 Spark New Zealand (ASX:SPK) Overvalued in 2026?
Based on GuruFocus' analysis, Spark New Zealand stock appears to be undervalued.
The current stock price of A$1.45 is trading 46.3% below its estimated GF Value™ of A$2.70.
GuruFocus considers Spark New Zealand to be Significantly Undervalued.
Key valuation signals for ASX:SPK:
PB Ratio: 2.32 (51% below median its 10-year median of 4.75)
GF Value™: A$2.70 vs. price of A$1.45 (46.3% below fair value)
Industry Position: 24.1% above the Telecommunication Services median (#218 of 342)
No single metric tells the full story. See the ASX:SPK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Spark is one of only three integrated telecommunications companies in New Zealand. It is the leading mobile network operator with low- to mid-40% subscriber and revenue share, and the dominant provider of fixed-line broadband services with a mid-30% subscriber share. It has a big position in the New Zealand corporate and wholesale telecommunications services provision space. Spark supplements its core telecommunications operations and related infrastructure with IT products and services across cloud, managed data and networks, procurement, data centers, and Internet of Things. Its operations are all based in New Zealand, except for its 41% interest in Southern Cross Submarine Cables, which has zero book value and to which Spark has no funding obligations.
67GF Score
Get the complete analysis for ASX:SPK
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
ASX:SPK has been successfully added to your 
