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Prothena (Prothena) Cyclically Adjusted Book per Share : $11.21 (As of Mar. 2024)


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What is Prothena Cyclically Adjusted Book per Share?

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.

Prothena's adjusted book value per share for the three months ended in Mar. 2024 was $9.352. 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 $11.21 for the trailing ten years ended in Mar. 2024.

During the past 12 months, Prothena's average Cyclically Adjusted Book Growth Rate was 4.80% 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.

As of today (2024-06-02), Prothena's current stock price is $20.81. Prothena's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2024 was $11.21. Prothena's Cyclically Adjusted PB Ratio of today is 1.86.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Prothena was 8.54. The lowest was 1.79. And the median was 4.61.


Prothena Cyclically Adjusted Book per Share Historical Data

The historical data trend for Prothena'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.

* Premium members only.

Prothena Cyclically Adjusted Book per Share Chart

Prothena Annual Data
Trend Dec14 Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only - - 9.62 10.41 11.22

Prothena Quarterly Data
Jun19 Sep19 Dec19 Mar20 Jun20 Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24
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 10.70 10.98 11.20 11.22 11.21

Competitive Comparison of Prothena's Cyclically Adjusted Book per Share

For the Biotechnology subindustry, Prothena'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.


Prothena's Cyclically Adjusted PB Ratio Distribution in the Biotechnology Industry

For the Biotechnology industry and Healthcare sector, Prothena's Cyclically Adjusted PB Ratio distribution charts can be found below:

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



Prothena 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, Prothena's adjusted Book Value per Share data for the three months ended in Mar. 2024 was:

Adj_Book= Book Value per Share /CPI of Mar. 2024 (Change)*Current CPI (Mar. 2024)
=9.352/120.9901*120.9901
=9.352

Current CPI (Mar. 2024) = 120.9901.

Prothena Quarterly Data

Book Value per Share CPI Adj_Book
201406 11.192 100.773 13.437
201409 11.013 100.474 13.262
201412 10.585 99.576 12.861
201503 10.101 99.975 12.224
201506 12.595 100.573 15.152
201509 11.990 100.274 14.467
201512 11.362 99.676 13.792
201603 13.564 99.676 16.464
201606 12.532 101.072 15.002
201609 11.641 100.274 14.046
201612 10.515 99.676 12.763
201703 13.074 100.374 15.759
201706 12.762 100.673 15.338
201709 11.608 100.474 13.978
201712 10.581 100.075 12.792
201803 10.283 100.573 12.371
201806 8.938 101.072 10.699
201809 8.520 101.371 10.169
201812 8.103 100.773 9.729
201903 7.830 101.670 9.318
201906 7.590 102.168 8.988
201909 7.248 102.268 8.575
201912 6.840 102.068 8.108
202003 6.390 102.367 7.552
202006 5.874 101.769 6.983
202009 5.248 101.072 6.282
202012 4.609 101.072 5.517
202103 5.310 102.367 6.276
202106 6.417 103.364 7.511
202109 10.540 104.859 12.161
202112 9.988 106.653 11.331
202203 9.388 109.245 10.397
202206 8.701 112.779 9.334
202209 8.450 113.504 9.007
202212 11.939 115.436 12.513
202303 11.531 117.609 11.862
202306 10.874 119.662 10.995
202309 11.507 120.749 11.530
202312 10.457 120.749 10.478
202403 9.352 120.990 9.352

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


Prothena  (NAS:PRTA) 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.

Prothena's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=20.81/11.21
=1.86

* 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 Prothena was 8.54. The lowest was 1.79. And the median was 4.61.


Be Aware

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


Prothena Cyclically Adjusted Book per Share Related Terms

Thank you for viewing the detailed overview of Prothena's Cyclically Adjusted Book per Share provided by GuruFocus.com. Please click on the following links to see related term pages.


Prothena (Prothena) Business Description

Industry
Traded in Other Exchanges
Address
77 Sir John Rogerson’s Quay, Block C, Grand Canal Docklands, Dublin 2, IRL, D02 VK60
Prothena Corp PLC is a biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating rare neurodegenerative and peripheral amyloid diseases. The company's clinical pipeline of antibody-based product candidates targets a range of indications, including Amyloid Light-chain (AL) amyloidosis (NEOD001), Parkinson's disease and other related synucleinopathies (PRX002), and inflammatory diseases, including psoriasis and psoriatic arthritis (PRX003) and ATTR amyloidosis (PRX004).
Executives
Karin L Walker officer: See Remarks C/O PROTHENA CORPORATION PLC, 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Brandon S. Smith officer: Chief Operating Officer C/O PROTHENA BIOSCIENCES INC., 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Carol D. Karp officer: Chief Regulatory Officer C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Michael J Malecek officer: Chief Legal Officer C/O PROTHENA BIOSCIENCES, INC., 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Hideki Garren officer: Chief Medical Officer C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Wagner M. Zago officer: Chief Scientific Officer C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Dennis J. Selkoe director 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Helen Susan Kim director 3832 BAY CENTER PLACE, HAYWARD CA 94545
Tran Nguyen officer: Chief Financial Officer C/O PROTHENA CORPORATION PLC, 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Gene G. Kinney officer: CSO & Head of R&D C/O PROTHENA CORPORATION PLC, 650 GATEWAY BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Dunn William H. Jr. director C/O PROTHENA BIOSCIENCES INC, 331 OYSTER POINT BOULEVARD, SOUTH SAN FRANCISCO CA 94080
Shane Cooke director TREASURY BUILDING LOWER GRAND CANAL ST., DUBLIN 2 L2 00000
Richard T Collier director
Lars Ekman director C/O ULTRAGENYX PHARMACEUTICAL INC., 60 LEVERONI COURT, NOVATO CA 94949
Paula K Cobb director NIGHTSTAR THERAPEUTICS PLC, 203 CRESCENT STREET, SUITE 303, WALTHAM MA 02453