Quantum (STU:QNT) Cyclically Adjusted PB Ratio: (As of Aug. 14, 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

STU:QNT Quantum Corp STU:QNT
55 GF Score
Price €21.22
GF Value €2.78
Valuation Significantly Overvalued
! 8 Warning Signs
View Full Analysis

What is Quantum Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Quantum  (STU:QNT) 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.


Quantum Cyclically Adjusted PB Ratio Related Terms


Quantum Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Quantum'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.

Quantum Cyclically Adjusted PB Ratio Chart

Quantum Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

Quantum Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio 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 0.00 0.00 0.00 0.00 0.00

STU:QNT vs DDD, NNDM, OSS: Cyclically Adjusted PB Ratio Comparison

For the Computer Hardware subindustry, Quantum'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.


Quantum Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


STU:QNT
55GF Score
Quantum Corp STU:QNT
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Quantum 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.

Quantum's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

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

Adj_Book=Book Value per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=-0.613/333.9520*333.9520
=-0.613

Current CPI (Jun. 2026) = 333.9520.

Quantum Quarterly Data

Book Value per Share CPI Adj_Book
201609 -62.554 241.428 -86.527
201612 -62.852 241.432 -86.938
201703 -61.380 243.801 -84.077
201706 -59.366 244.955 -80.935
201709 -58.018 246.819 -78.500
201712 0.000 246.524 0.000
201803 -78.070 249.554 -104.473
201806 0.000 251.989 0.000
201809 -93.716 252.439 -123.977
201812 -93.543 251.233 -124.342
201903 -94.599 254.202 -124.277
201906 -95.843 256.143 -124.957
201909 -96.861 256.759 -125.982
201912 -85.109 256.974 -110.604
202003 -86.795 258.115 -112.296
202006 -83.867 257.797 -108.642
202009 -78.849 260.280 -101.167
202012 -73.990 260.474 -94.862
202103 -31.940 264.877 -40.269
202106 -31.549 271.696 -38.778
202109 -32.074 274.310 -39.048
202112 -35.030 278.802 -41.959
202203 -43.188 287.504 -50.165
202206 -14.365 296.311 -16.190
202209 -17.390 296.808 -19.566
202212 -15.619 296.797 -17.574
202303 -16.841 301.836 -18.633
202306 -18.535 305.109 -20.287
202309 -18.527 307.789 -20.102
202312 -19.502 306.746 -21.232
202403 -23.321 312.332 -24.935
202406 -27.384 314.175 -29.108
202409 -28.837 315.301 -30.543
202412 -35.100 315.605 -37.140
202503 -21.838 319.799 -22.804
202506 -7.446 322.561 -7.709
202509 -10.256 324.800 -10.545
202512 -11.131 324.054 -11.471
202603 -11.751 330.213 -11.884
202606 -0.613 333.952 -0.613

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

Is Quantum (STU:QNT) Overvalued in 2026?

Based on GuruFocus' analysis, Quantum stock appears to be overvalued. The current stock price of €21.22 is trading 663.3% above its estimated GF Value™ of €2.78. GuruFocus considers Quantum to be Significantly Overvalued.

Key valuation signals for STU:QNT:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €2.78 vs. price of €21.22 (663.3% above fair value)
  • GF Score™: 55/100 with 8 warning signs

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


Quantum Business Description

Other Exchanges QMCO:USA0A7S:UK
Address 10770 E. Briarwood Avenue, Centennial, CO, USA, 80112
Quantum Corp is a United States-based company that delivers end-to-end data management solutions designed for unstructured data in the era of artificial intelligence (AI). It provides one of the comprehensive and cost-efficient solutions for the entire data lifecycle. The group provides solutions for video, images, audio, and other large files because this unstructured data represents. Its portfolio of products includes primary storage software and systems, secondary storage software and systems, as well as devices and media. The group operates in three geographic regions: Americas, Europe, the Middle East, and Africa (EMEA), and Asia Pacific (APAC).
55GF Score

Get the complete analysis for STU:QNT

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

€21.22
Price
€2.78
GF Value