QNST (QuinStreet) Cyclically Adjusted PB Ratio: (As of Sep. 21, 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.

QNST QuinStreet Inc QNST
79 GF Score
Price $17.48
GF Value $22.24
Valuation Modestly Undervalued
! 2 Warning Signs
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What is QuinStreet Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


QuinStreet  (NAS:QNST) 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.


QuinStreet Cyclically Adjusted PB Ratio Related Terms


QuinStreet Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for QuinStreet'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.

QuinStreet Cyclically Adjusted PB Ratio Chart

QuinStreet Annual Data
Trend Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25 Jun26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.08 1.94 3.57 3.37 2.85

QuinStreet 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 3.34 3.18 2.94 2.40 2.86

QNST vs CCO, CRTO, EVC: Cyclically Adjusted PB Ratio Comparison

For the Advertising Agencies subindustry, QuinStreet'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.


QuinStreet Cyclically Adjusted PB Ratio vs Media - Diversified Industry

For the Media - Diversified industry and Communication Services sector, QuinStreet's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


QNST
79GF Score
QuinStreet Inc QNST
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

QuinStreet 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.

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

For example, QuinStreet'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)
=5.719/333.9520*333.9520
=5.719

Current CPI (Jun. 2026) = 333.9520.

QuinStreet Quarterly Data

Book Value per Share CPI Adj_Book
201609 2.699 241.428 3.733
201612 2.557 241.432 3.537
201703 2.599 243.801 3.560
201706 2.599 244.955 3.543
201709 2.650 246.819 3.586
201712 2.702 246.524 3.660
201803 2.845 249.554 3.807
201806 3.081 251.989 4.083
201809 3.114 252.439 4.120
201812 4.244 251.233 5.641
201903 4.281 254.202 5.624
201906 4.411 256.143 5.751
201909 4.463 256.759 5.805
201912 4.529 256.974 5.886
202003 4.798 258.115 6.208
202006 4.902 257.797 6.350
202009 5.178 260.280 6.644
202012 5.246 260.474 6.726
202103 5.382 264.877 6.786
202106 5.487 271.696 6.744
202109 5.529 274.310 6.731
202112 5.475 278.802 6.558
202203 5.506 287.504 6.396
202206 5.360 296.311 6.041
202209 5.290 296.808 5.952
202212 5.200 296.797 5.851
202303 5.258 301.836 5.817
202306 4.240 305.109 4.641
202309 4.068 307.789 4.414
202312 3.922 306.746 4.270
202403 3.889 312.332 4.158
202406 3.909 314.175 4.155
202409 3.916 315.301 4.148
202412 3.971 315.605 4.202
202503 4.135 319.799 4.318
202506 4.270 322.561 4.421
202509 4.300 324.800 4.421
202512 5.166 324.054 5.324
202603 5.403 330.213 5.464
202606 5.719 333.952 5.719

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 QuinStreet (QNST) Overvalued in 2026?

Based on GuruFocus' analysis, QuinStreet stock appears to be undervalued. The current stock price of $17.48 is trading 21.4% below its estimated GF Value™ of $22.24. GuruFocus considers QuinStreet to be Modestly Undervalued.

Key valuation signals for QNST:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $22.24 vs. price of $17.48 (21.4% below fair value)
  • GF Score™: 79/100 with 2 warning signs

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


QuinStreet Business Description

Other Exchanges 5Q8:Germany
Address 950 Tower Lane, 12th Floor, Foster City, CA, USA, 94404
QuinStreet Inc focuses on marketplaces and technologies for the financial services and home services industries. It delivers measurable and cost-effective marketing results to its clients, in the form of qualified inquiries such as clicks, leads, calls, applications, or customers. It generates revenue by delivering measurable online marketing results to the clients. Its products and services are Customer Acquisition, QuinStreet Rating Platform (QRP), and CloudControlMedia. Geographically, it operates in United States and Internationally, of which maximum revenue is derived from United States.
79GF Score

Get the complete analysis for QNST

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

$17.48
Price
$22.24
GF Value