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ProthenaPRTA +6.66%74 Cash Ratio is 24.72 as of Jun. 2026, which is 103% above its 10-year median of 12.18. GuruFocus rates PRTA with a GF Score™ of 74/100 and a GF Value™ of $12.96 (Modestly Undervalued). The stock has 2 warning signs investors should review. Among 1,385 Biotechnology companies, Prothena ranks better than 95.02% on this metric.
The cash ratio is more conservative than other liquidity ratios, such as Quick Ratio and Current Ratio, because it only considers a company's most liquid resources. The numerator of cash ratio only considers Cash, Cash Equivalents and marketable securities. Other current assets, such as accounts receivable and inventories, are not included. The rationale is that these assets may require time to be transformed into cash, and the amount of money received is also uncertain.
The cash ratio shows a company’s ability to pay all current liabilities immediately without selling or liquidating other assets. Generally speaking, a higher cash ratio suggests the company has a stronger ability to cover its short-term debt. However, a high cash ratio could also indicate inefficient management: the company is inefficient in making full utilization of cash to invest protential profitable project. It may also suggest that the company is not confident about future profitability.
In general, the higher the cash ratio, the better the company's liquidity position.
Prothena Cash Ratio Related Terms
Prothena Cash Ratio Historical Data
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The historical data trend for Prothena's Cash 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.
For the Biotechnology subindustry, Prothena's Cash Ratio, along with its competitors' market caps and Cash 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 Cash Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Prothena's Cash Ratio distribution charts can be found below:
* The bar in red indicates where Prothena's Cash Ratio falls into.
* 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.
Prothena (PRTA) has a Cash Ratio of 24.72 as of Jun. 2026. Cashflow ratio is the ratio of Cash, Cash Equivalents, Marketable Securities to current liabilities. View historical data on Prothena and its competitors. This is 103% above median its historical median of 12.18. Over the past decade, Prothena's Cash Ratio has ranged from 5.48 to 28.65. According to the industry distribution chart, Prothena ranks #69 out of 1385 companies in the Biotechnology industry, placing it in the top 5%.
Is Prothena's Cash Ratio too high?
Prothena's current Cash Ratio of 24.72 is 103% above median its 10-year median of 12.18. Over the past 10 years, this metric has ranged from a low of 5.48 to a high of 28.65. The Biotechnology industry median Cash Ratio is 2.96. Prothena's value of 24.72 is 735.1% above this industry median. Based on the distribution chart, Prothena ranks #69 out of 1385 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers. Overall, Prothena has a GF Score™ of 74/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Prothena's Cash Ratio compare to KYTX and QTTB?
According to the Biotechnology industry distribution chart, Prothena ranks #69 out of 1385 companies for Cash Ratio. This places Prothena in the top 5% of its industry — outperforming the majority of peers. The industry median Cash Ratio is 2.96. Prothena's value of 24.72 is 735.1% above this benchmark. Historically, Prothena's own Cash Ratio has ranged from 5.48 to 28.65 over the past decade. While the company's 10-year median is 12.18 vs. the industry median of 2.96, Prothena has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cash Ratio for a Biotechnology company?
The median Cash Ratio among Biotechnology companies is 2.96, based on 1,385 companies in the industry. Companies in the top quartile (top 25%) have a Cash Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cash Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Prothena's current Cash Ratio of 24.72 is 735.1% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cash Ratio mean?
A high Cash Ratio can signal that a stock is expensive relative to its fundamentals. Cashflow ratio is the ratio of Cash, Cash Equivalents, Marketable Securities to current liabilities. View historical data on Prothena and its competitors. For the Biotechnology industry, the median Cash Ratio is 2.96 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prothena's current Cash Ratio is 24.72, which is 103% above median its own 10-year median of 12.18. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Prothena stock overvalued right now?
Based on GuruFocus' analysis, Prothena (PRTA) is currently considered Modestly Undervalued. The stock's GF Value™ is $12.96, compared to a current price of $9.29 — trading 28.3% below its estimated fair value. The current Cash Ratio is 24.72, which is 103% above median its 10-year median of 12.18 and 735.1% above the Biotechnology industry median of 2.96. Prothena's overall GF Score™ is 74/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cash Ratio calculated?
Cash Ratio is calculated from a company's financial statements. For Prothena (PRTA), the current Cash Ratio is 24.72 as of Jun. 2026. 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.
Is Prothena (PRTA) Overvalued in 2026?
Based on GuruFocus' analysis, Prothena stock appears to be undervalued.
The current stock price of $9.29 is trading 28.3% below its estimated GF Value™ of $12.96.
GuruFocus considers Prothena to be Modestly Undervalued.
Key valuation signals for PRTA:
Cash Ratio: 24.72 (103% above median its 10-year median of 12.18)
GF Value™: $12.96 vs. price of $9.29 (28.3% below fair value)
Industry Position: 735.1% above the Biotechnology median (#69 of 1385)
No single metric tells the full story. See the PRTA stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Prothena Corp PLC is a late-stage clinical biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare and peripheral amyloid diseases. Prothena is developing and applying its proprietary CYTOPE technology to target a broad spectrum of intracellular disease pathways in the brain and periphery. The company's pipeline includes both wholly-owned and partnered programs like Prasinezumab, Coramitug (PRX004), BMS-986446 (PRX005), PRX019, TDP-43 CYTOPE, and PRX012-TfR, being developed for the potential treatment of Parkinson's disease, ATTR amyloidosis with cardiomyopathy, Alzheimer's disease, Amyotrophic lateral sclerosis (ALS), and other neurodegenerative diseases.
74GF Score
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