Prothena (PRTA) - P/B ratio

P/B ratio as of November 2024 : 1.38

According to Prothena's latest financial reports the company has a price-to-book ratio of 3.68804.
The price-to-book ratio is a way to measure how much the stock market thinks a company is worth compared to how much the company says its assets are worth on paper.

Prothena - P/B ratio (from 2012 to 2024)

P/B ratio by year

Year	P/B ratio	Change
2024-12-31	N/A	-100%
2023-12-31	3.47	-30.53%
2022-12-31	5.00	1.25%
2021-12-31	4.94	89.55%
2020-12-31	2.61	12.59%
2019-12-31	2.31	82.05%
2018-12-31	1.27	-64.09%
2017-12-31	3.54	-23.76%
2016-12-31	4.64	-22.55%
2015-12-31	5.99	205.64%
2014-12-31	1.96	-41.37%
2013-12-31	3.35	226.51%
2012-12-31	1.02

P/B ratio for similar companies or competitors

Company	P/B ratio	P/B ratio differencediff.	Country
Alkermes ALKS	3.49	153.70%	🇮🇪 Ireland
Alnylam Pharmaceuticals ALNY	970	70,346.24%	🇺🇸 USA
Amarin Corporation AMRN	0.3884	-71.79%	🇮🇪 Ireland

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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