Quanta Storage (ROCO:6188) Cyclically Adjusted Book per Share: NT$36.43 (As of Mar. 2026)

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ROCO:6188 Quanta Storage Inc ROCO:6188
65 GF Score
Price NT$71.70
GF Value NT$93.27
Valuation Modestly Undervalued
! 2 Warning Signs
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What is Quanta Storage Cyclically Adjusted Book per Share?

Quanta Storage ROCO:6188 +0.28% 65 Cyclically Adjusted Book per Share is NT$36.43 as of Mar. 2026. GuruFocus rates ROCO:6188 with a GF Score™ of 65/100 and a GF Value™ of NT$93.27 (Modestly Undervalued). The stock has 2 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

Quanta Storage's adjusted book value per share for the three months ended in Mar. 2026 was NT$44.942. 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 NT$36.43 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Quanta Storage's average Cyclically Adjusted Book Growth Rate was -100.00% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 2.40% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Quanta Storage was 3.70% per year. The lowest was 1.00% per year. And the median was 2.10% per year.

As of today (2026-07-22), Quanta Storage's current stock price is NT$71.70. Quanta Storage's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was NT$36.43. Quanta Storage's Cyclically Adjusted PB Ratio of today is 1.97.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Quanta Storage was 3.51. The lowest was 0.73. And the median was 1.38.


Quanta Storage  (ROCO:6188) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

Quanta Storage's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=71.70/36.43
=1.97

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Quanta Storage was 3.51. The lowest was 0.73. And the median was 1.38.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Quanta Storage Cyclically Adjusted Book per Share Related Terms


Quanta Storage Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Quanta Storage's Cyclically Adjusted Book per Share 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.

Quanta Storage Cyclically Adjusted Book per Share Chart

Quanta Storage Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 33.26 34.90 35.28 35.35 35.95

Quanta Storage Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 35.54 35.65 35.95 35.95 36.43

ROCO:6188 vs SNDK, DELL, STX: Cyclically Adjusted Book per Share Comparison

For the Computer Hardware subindustry, Quanta Storage'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.


Quanta Storage Cyclically Adjusted PB Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Quanta Storage's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Quanta Storage's Cyclically Adjusted PB Ratio falls into.


ROCO:6188
65GF Score
Quanta Storage Inc ROCO:6188
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Quanta Storage Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

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.

For example, Quanta Storage's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=44.942/330.2130*330.2130
=44.942

Current CPI (Mar. 2026) = 330.2130.

Quanta Storage Quarterly Data

Book Value per Share CPI Adj_Book
201606 29.684 241.018 40.669
201609 29.238 241.428 39.990
201612 29.746 241.432 40.684
201703 29.069 243.801 39.372
201706 28.335 244.955 38.197
201709 28.380 246.819 37.969
201712 28.765 246.524 38.530
201803 29.223 249.554 38.668
201806 28.242 251.989 37.009
201809 27.894 252.439 36.488
201812 28.809 251.233 37.866
201903 29.751 254.202 38.647
201906 28.730 256.143 37.038
201909 28.543 256.759 36.709
201912 28.321 256.974 36.393
202003 26.616 258.115 34.051
202006 24.704 257.797 31.643
202009 25.451 260.280 32.289
202012 26.167 260.474 33.173
202103 26.089 264.877 32.524
202106 26.725 271.696 32.481
202109 27.572 274.310 33.191
202112 30.307 278.802 35.896
202203 29.369 287.504 33.732
202206 30.405 296.311 33.884
202209 31.692 296.808 35.259
202212 32.207 296.797 35.833
202303 29.962 301.836 32.779
202306 30.613 305.109 33.132
202309 32.430 307.789 34.793
202312 33.192 306.746 35.731
202403 31.508 312.332 33.312
202406 32.248 314.175 33.894
202409 33.061 315.301 34.625
202412 34.261 315.605 35.847
202503 33.531 319.799 34.623
202506 32.659 322.561 33.434
202509 44.373 324.800 45.113
202512 45.758 324.054 46.628
202603 44.942 330.213 44.942

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of NT$36.43 mean?
Quanta Storage (ROCO:6188) has a Cyclically Adjusted Book per Share of NT$36.43 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Quanta Storage and its competitors.
Is Quanta Storage's Cyclically Adjusted Book per Share too high?
Quanta Storage's current Cyclically Adjusted Book per Share is NT$36.43. Overall, Quanta Storage has a GF Score™ of 65/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Quanta Storage's Cyclically Adjusted Book per Share compare to SNDK and DELL?
Quanta Storage's Cyclically Adjusted Book per Share of NT$36.43 can be compared against companies in the Hardware industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Hardware company?
A good Cyclically Adjusted Book per Share depends on the Hardware industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Quanta Storage and its competitors. Quanta Storage's current Cyclically Adjusted Book per Share is NT$36.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Quanta Storage stock overvalued right now?
Based on GuruFocus' analysis, Quanta Storage (ROCO:6188) is currently considered Modestly Undervalued. The stock's GF Value™ is NT$93.27, compared to a current price of NT$71.70 — trading 23.1% below its estimated fair value. The current Cyclically Adjusted Book per Share is NT$36.43. Quanta Storage's overall GF Score™ is 65/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Quanta Storage (ROCO:6188), the current Cyclically Adjusted Book per Share is NT$36.43 as of Mar. 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 Quanta Storage (ROCO:6188) Overvalued in 2026?

Based on GuruFocus' analysis, Quanta Storage stock appears to be undervalued. The current stock price of NT$71.70 is trading 23.1% below its estimated GF Value™ of NT$93.27. GuruFocus considers Quanta Storage to be Modestly Undervalued.

Key valuation signals for ROCO:6188:

  • Cyclically Adjusted Book per Share: NT$36.43
  • GF Value™: NT$93.27 vs. price of NT$71.70 (23.1% below fair value)
  • GF Score™: 65/100 with 2 warning signs

No single metric tells the full story. See the ROCO:6188 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Quanta Storage Business Description

Address No. 58-2, Huaya 2nd Road, 6th Floor, Guishan District, Taoyuan, TWN, 333411
Quanta Storage Inc is engaged in the research, development, production, manufacturing, & selling of data storage and processing equipment, electronic components, & optical instruments. The Group has three reportable segments: The Mainland China Operation center, the Southeast Asia Operation center, & the Taiwan Operation center. The Mainland China Operation Center includes OEM, production, & sales of computer peripherals to computer companies. The Southeast Asia Operation Center is engaged in the OEM, production, & sales of consumer electronic products. The Taiwan Operation Center's main activities include the sales & trading of electronic products & raw materials. Other segments are mainly engaged in activities pertaining to investment, including strategic investment & fund investment.
65GF Score

Get the complete analysis for ROCO:6188

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

NT$71.70
Price
NT$93.27
GF Value