Spark New ZealandASX:SPK +1.31%72 Cyclically Adjusted PB Ratio is 1.65 as of Jul. 11, 2026, which is 58% below its 10-year median of 3.91. GuruFocus rates ASX:SPK with a GF Score™ of 72/100 and a GF Value™ of A$2.84 (Significantly Undervalued). The stock has 8 warning signs investors should review. Among 290 Telecommunication Services companies, Spark New Zealand ranks better than 50.34% on this metric.
The historical rank and industry rank for Spark New Zealand's Cyclically Adjusted PB Ratio or its related term are showing as below:
ASX:SPK'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1.82 Med: 3.91 Max: 5.62
Current: 1.83
During the past 13 years, Spark New Zealand's highest Cyclically Adjusted PB Ratio was 5.62. The lowest was 1.82. And the median was 3.91.
ASX:SPK's Cyclically Adjusted PB Ratio is ranked better than 50.34% of 290
companies
in the Telecommunication Services industry
Industry Median: 1.845
vs ASX:SPK: 1.83
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.
Spark New Zealand's adjusted book value per share data of for the fiscal year that ended in Jun25 was A$0.746. 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 A$0.94 for the trailing ten years ended in Jun25.
Shiller PE for Stocks: The True Measure of Stock Valuation
Spark New Zealand (ASX:SPK) 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.
Spark New Zealand Cyclically Adjusted PB Ratio Related Terms
Spark New Zealand Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Spark New Zealand'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.
Spark New Zealand Cyclically Adjusted PB Ratio Chart
ASX:SPK vs TMUS, VZ, T: Cyclically Adjusted PB Ratio Comparison
For the Telecom Services subindustry, Spark New Zealand'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.
Spark New Zealand Cyclically Adjusted PB Ratio vs Telecommunication Services Industry
For the Telecommunication Services industry and Communication Services sector, Spark New Zealand's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Spark New Zealand's Cyclically Adjusted PB Ratio falls into.
Spark New Zealand 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.
Spark New Zealand'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 1.65 mean?
Spark New Zealand (ASX:SPK) has a Cyclically Adjusted PB Ratio of 1.65 as of Jul. 11, 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 Spark New Zealand and its competitors. This is 58% below median its historical median of 3.91. Over the past decade, Spark New Zealand's Cyclically Adjusted PB Ratio has ranged from 1.82 to 5.62. According to the industry distribution chart, Spark New Zealand ranks #144 out of 290 companies in the Telecommunication Services industry, placing it in the top 49.7%.
Is Spark New Zealand's Cyclically Adjusted PB Ratio too high?
Spark New Zealand's current Cyclically Adjusted PB Ratio of 1.65 is 58% below median its 10-year median of 3.91. Over the past 10 years, this metric has ranged from a low of 1.82 to a high of 5.62. The Telecommunication Services industry median Cyclically Adjusted PB Ratio is 1.85. Spark New Zealand's value of 1.65 is 10.6% below this industry median. Based on the distribution chart, Spark New Zealand ranks #144 out of 290 companies in the Telecommunication Services industry, which is above the industry midpoint. Overall, Spark New Zealand has a GF Score™ of 72/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Spark New Zealand's Cyclically Adjusted PB Ratio compare to TMUS and VZ?
According to the Telecommunication Services industry distribution chart, Spark New Zealand ranks #144 out of 290 companies for Cyclically Adjusted PB Ratio. This puts Spark New Zealand in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.85. Spark New Zealand's value of 1.65 is 10.6% below this benchmark. Historically, Spark New Zealand's own Cyclically Adjusted PB Ratio has ranged from 1.82 to 5.62 over the past decade. While the company's 10-year median is 3.91 vs. the industry median of 1.85, Spark New Zealand 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 Cyclically Adjusted PB Ratio for a Telecommunication Services company?
The median Cyclically Adjusted PB Ratio among Telecommunication Services companies is 1.85, based on 290 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. Spark New Zealand's current Cyclically Adjusted PB Ratio of 1.65 is 10.6% 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 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 Spark New Zealand and its competitors. For the Telecommunication Services industry, the median Cyclically Adjusted PB Ratio is 1.85 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Spark New Zealand's current Cyclically Adjusted PB Ratio is 1.65, which is 58% below median its own 10-year median of 3.91. 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$2.84, compared to a current price of A$1.55 — trading 45.4% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.65, which is 58% below median its 10-year median of 3.91 and 10.6% below the Telecommunication Services industry median of 1.85. Spark New Zealand's overall GF Score™ is 72/100 with 8 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 Spark New Zealand (ASX:SPK), the current Cyclically Adjusted PB Ratio is 1.65 as of Jul. 11, 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$1.55 is trading 45.4% below its estimated GF Value™ of A$2.84.
GuruFocus considers Spark New Zealand to be Significantly Undervalued.
Key valuation signals for ASX:SPK:
Cyclically Adjusted PB Ratio: 1.65 (58% below median its 10-year median of 3.91)
GF Value™: A$2.84 vs. price of A$1.55 (45.4% below fair value)
Industry Position: 10.6% below the Telecommunication Services median (#144 of 290)
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.
72GF Score
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