PRPH (ProPhase Labs) Cyclically Adjusted Book per Share: $23.70 (As of Dec. 2025)


What is ProPhase Labs Cyclically Adjusted Book per Share?

ProPhase Labs PRPH +9.77% Cyclically Adjusted Book per Share is $23.70 as of Dec. 2025. The stock has 4 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.

ProPhase Labs's adjusted book value per share for the three months ended in Dec. 2025 was $0.391. 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 $23.70 for the trailing ten years ended in Dec. 2025.

During the past 12 months, ProPhase Labs's average Cyclically Adjusted Book Growth Rate was 0.40% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 7.30% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 15.70% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 9.90% 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 ProPhase Labs was 24.00% per year. The lowest was -12.10% per year. And the median was -6.10% per year.

As of today (2026-06-26), ProPhase Labs's current stock price is $0.10. ProPhase Labs's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was $23.70. ProPhase Labs's Cyclically Adjusted PB Ratio of today is 0.00.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of ProPhase Labs was 13.77. The lowest was 0.01. And the median was 2.16.


ProPhase Labs  (OTCPK:PRPH) 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.

ProPhase Labs's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.10/23.70
=0.00

* 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 ProPhase Labs was 13.77. The lowest was 0.01. And the median was 2.16.


Be Aware

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


ProPhase Labs Cyclically Adjusted Book per Share Related Terms


ProPhase Labs Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for ProPhase Labs'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.

ProPhase Labs Cyclically Adjusted Book per Share Chart

ProPhase Labs 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 14.88 19.21 22.14 23.61 23.70

ProPhase Labs Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 23.61 23.81 23.91 23.92 23.70

PRPH vs NSTM, IDTA, IVRO: Cyclically Adjusted Book per Share Comparison

For the Diagnostics & Research subindustry, ProPhase Labs'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.


ProPhase Labs Cyclically Adjusted PB Ratio vs Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, ProPhase Labs's Cyclically Adjusted PB Ratio distribution charts can be found below:

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



ProPhase Labs 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, ProPhase Labs's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0.391/324.0540*324.0540
=0.391

Current CPI (Dec. 2025) = 324.0540.

ProPhase Labs Quarterly Data

Book Value per Share CPI Adj_Book
201603 4.388 238.132 5.971
201606 3.728 241.018 5.012
201609 3.826 241.428 5.135
201612 3.491 241.432 4.686
201703 29.580 243.801 39.317
201706 28.853 244.955 38.170
201709 29.485 246.819 38.711
201712 28.614 246.524 37.613
201803 29.757 249.554 38.640
201806 17.804 251.989 22.896
201809 17.070 252.439 21.913
201812 14.289 251.233 18.431
201903 13.583 254.202 17.315
201906 12.675 256.143 16.036
201909 12.456 256.759 15.721
201912 9.707 256.974 12.241
202003 9.180 258.115 11.525
202006 9.399 257.797 11.815
202009 9.277 260.280 11.550
202012 9.100 260.474 11.321
202103 34.762 264.877 42.528
202106 31.507 271.696 37.579
202109 30.840 274.310 36.433
202112 37.849 278.802 43.992
202203 42.895 287.504 48.348
202206 43.358 296.311 47.418
202209 42.371 296.808 46.261
202212 39.254 296.797 42.859
202303 35.573 301.836 38.192
202306 35.167 305.109 37.351
202309 31.262 307.789 32.914
202312 27.359 306.746 28.903
202403 24.857 312.332 25.790
202406 23.101 314.175 23.827
202409 19.982 315.301 20.537
202412 2.462 315.605 2.528
202503 3.639 319.799 3.687
202506 2.753 322.561 2.766
202509 1.652 324.800 1.648
202512 0.391 324.054 0.391

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 $23.70 mean?
ProPhase Labs (PRPH) has a Cyclically Adjusted Book per Share of $23.70 as of Dec. 2025. 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 ProPhase Labs and its competitors.
Is ProPhase Labs' Cyclically Adjusted Book per Share too high?
ProPhase Labs' current Cyclically Adjusted Book per Share is $23.70.
How does ProPhase Labs' Cyclically Adjusted Book per Share compare to NSTM and IDTA?
ProPhase Labs' Cyclically Adjusted Book per Share of $23.70 can be compared against companies in the Medical Diagnostics & Research 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 Medical Diagnostics & Research company?
A good Cyclically Adjusted Book per Share depends on the Medical Diagnostics & Research 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 ProPhase Labs and its competitors. ProPhase Labs's current Cyclically Adjusted Book per Share is $23.70. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ProPhase Labs stock overvalued right now?
Based on GuruFocus' analysis, ProPhase Labs (PRPH) is currently considered Possible Value Trap. The stock's GF Value™ is $0.65, compared to a current price of $0.10 — trading 84.6% below its estimated fair value. The current Cyclically Adjusted Book per Share is $23.70. 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 ProPhase Labs (PRPH), the current Cyclically Adjusted Book per Share is $23.70 as of Dec. 2025. 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.

ProPhase Labs Business Description

Address 626 RXR Plaza, 6th Floor, Uniondale, NY, USA, 11556
ProPhase Labs Inc oriented and diversified next generation biotech, genomics and consumer products company that develops and commercializes novel drugs, dietary supplements, and compounds, and human genomic testing. It offer whole genome sequencing and related services. It maintain two operating segments: diagnostic services (which includes its COVID-19 and other diagnostic testing services) and consumer products. It generates majority of revenue from consumer products segment which engaged in the research, development, manufacture, distribution, marketing and sale of OTC consumer healthcare products and dietary supplements in the United States and also provides personal genomics products and services.