Harmonic (HAM:HMC) Cyclically Adjusted PB Ratio: (As of Aug. 09, 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.

HAM:HMC Harmonic Inc HAM:HMC
64 GF Score
Price €9.86
GF Value €6.90
Valuation Significantly Overvalued
! 5 Warning Signs
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What is Harmonic Cyclically Adjusted PB Ratio?

Note: If the price history is too short, we do not calculate current Cyclically Adjusted PB Ratio for this stock. All the historical data is shown as the company's primary share's data instead.

Shiller PE for Stocks: The True Measure of Stock Valuation


Harmonic  (HAM:HMC) 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.


Harmonic Cyclically Adjusted PB Ratio Related Terms


Harmonic Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Harmonic'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.

Harmonic Cyclically Adjusted PB Ratio Chart

Harmonic Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.91 3.30 3.44 3.60 2.76

Harmonic Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
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 2.61 2.58 2.79 2.76 2.50

HAM:HMC vs GILT, ADTN, FEIM: Cyclically Adjusted PB Ratio Comparison

For the Communication Equipment subindustry, Harmonic'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.


Harmonic Cyclically Adjusted PB Ratio vs Hardware Industry

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

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


HAM:HMC
64GF Score
Harmonic Inc HAM:HMC
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Harmonic 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.

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

For example, Harmonic'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)
=2.832/330.2130*330.2130
=2.832

Current CPI (Mar. 2026) = 330.2130.

Harmonic Quarterly Data

Book Value per Share CPI Adj_Book
201606 3.332 241.018 4.565
201609 3.202 241.428 4.380
201612 3.270 241.432 4.472
201703 2.920 243.801 3.955
201706 2.511 244.955 3.385
201709 2.268 246.819 3.034
201712 2.235 246.524 2.994
201803 2.151 249.554 2.846
201806 2.212 251.989 2.899
201809 2.205 252.439 2.884
201812 2.305 251.233 3.030
201903 2.199 254.202 2.857
201906 2.107 256.143 2.716
201909 2.423 256.759 3.116
201912 2.497 256.974 3.209
202003 2.231 258.115 2.854
202006 2.111 257.797 2.704
202009 2.037 260.280 2.584
202012 2.162 260.474 2.741
202103 2.174 264.877 2.710
202106 2.180 271.696 2.650
202109 2.278 274.310 2.742
202112 2.551 278.802 3.021
202203 2.471 287.504 2.838
202206 2.673 296.311 2.979
202209 2.880 296.808 3.204
202212 2.788 296.797 3.102
202303 2.817 301.836 3.082
202306 2.836 305.109 3.069
202309 2.847 307.789 3.054
202312 3.564 306.746 3.837
202403 3.363 312.332 3.556
202406 3.146 314.175 3.307
202409 3.317 315.301 3.474
202412 3.806 315.605 3.982
202503 3.598 319.799 3.715
202506 3.413 322.561 3.494
202509 3.364 324.800 3.420
202512 2.944 324.054 3.000
202603 2.832 330.213 2.832

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 Harmonic (HAM:HMC) Overvalued in 2026?

Based on GuruFocus' analysis, Harmonic stock appears to be overvalued. The current stock price of €9.86 is trading 42.9% above its estimated GF Value™ of €6.90. GuruFocus considers Harmonic to be Significantly Overvalued.

Key valuation signals for HAM:HMC:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: €6.90 vs. price of €9.86 (42.9% above fair value)
  • GF Score™: 64/100 with 5 warning signs

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


Harmonic Business Description

Address 2590 Orchard Parkway, San Jose, CA, USA, 95131
Harmonic Inc engaged in broadband access solutions that enable broadband operators to more efficiently and effectively deploy high-speed internet for data, voice, and video services for their customers and versatile and high-performance video delivery software, products, system solutions and services that enable its customers to efficiently create, prepare, store, playout and deliver a full range of high-quality broadcast and streaming video services to consumer devices, including televisions, personal computers, laptops, tablets, and smartphones. It has two segments, Broadband which provides broadband access solutions and related services, and Others; and Video business provides video processing and production and playout solutions and services, and Others.
64GF Score

Get the complete analysis for HAM:HMC

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

€9.86
Price
€6.90
GF Value