ProthenaSTU:0PT -1.78%74 Quick Ratio is 10.43 as of Mar. 2026, which is 19% below its 10-year median of 12.93. GuruFocus rates STU:0PT with a GF Score™ of 74/100 and a GF Value™ of €12.92. The stock has 2 warning signs investors should review. Among 1,412 Biotechnology companies, Prothena ranks better than 79.96% on this metric.
The quick ratio measures a company's ability to meet its short-term obligations with its most liquid assets. It is calculated as a company's Total Current Assets excludes Total Inventories divides by its Total Current Liabilities. Prothena's quick ratio for the quarter that ended in Mar. 2026 was 10.43.
Prothena has a quick ratio of 10.43. It generally indicates good short-term financial strength.
The historical rank and industry rank for Prothena's Quick Ratio or its related term are showing as below:
STU:0PT'
s Quick Ratio Range Over the Past 10 Years
Min: 5.68 Med: 12.93 Max: 28.9
Current: 10.43
During the past 13 years, Prothena's highest Quick Ratio was 28.90. The lowest was 5.68. And the median was 12.93.
STU:0PT's Quick Ratio is ranked better than 79.96% of 1412
companies
in the Biotechnology industry
Industry Median: 3.6
vs STU:0PT: 10.43
Prothena (STU:0PT) Quick Ratio Explanation
The quick ratio is more conservative than the Current Ratio because it excludes inventories from current assets. The ratio derives its name presumably from the fact that assets such as cash and marketable securities are quick sources of cash. Inventories generally take time to be converted into cash, and if they have to be sold quickly, the company may have to accept a lower price than book value of these inventories. As a result, they are justifiably excluded from assets that are ready sources of immediate cash.
In general, low or decreasing quick ratios generally suggest that a company is over-leveraged, struggling to maintain or grow sales, paying bills too quickly or collecting receivables too slowly. On the other hand, a high or increasing quick ratio generally indicates that a company is experiencing solid top-line growth, quickly converting receivables into cash, and easily able to cover its financial obligations. Such companies often have faster inventory turnover and cash conversion cycles.
The higher the quick ratio, the better the company's liquidity position.
Prothena Quick Ratio Related Terms
Prothena Quick Ratio Historical Data
* Premium members only.
The historical data trend for Prothena's Quick 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.
STU:0PT vs CTNM, ASMB, ARVN: Quick Ratio Comparison
For the Biotechnology subindustry, Prothena's Quick Ratio, along with its competitors' market caps and Quick 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 Quick Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, Prothena's Quick Ratio distribution charts can be found below:
* The bar in red indicates where Prothena's Quick Ratio falls into.
The quick ratio measures a company's ability to meet its short-term obligations with its most liquid assets. For this reason, the ratio excludes inventories from current assets.
Prothena's Quick Ratio for the fiscal year that ended in Dec. 2025 is calculated as
* 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 (STU:0PT) has a Quick Ratio of 10.43 as of Mar. 2026. Quick ratio is the ratio of current assets less inventory to current liabilities. View historical data on Prothena and its competitors. This is 19% below median its historical median of 12.93. Over the past decade, Prothena's Quick Ratio has ranged from 5.68 to 28.90. According to the industry distribution chart, Prothena ranks #283 out of 1412 companies in the Biotechnology industry, placing it in the top 20%.
Is Prothena's Quick Ratio too high?
Prothena's current Quick Ratio of 10.43 is 19% below median its 10-year median of 12.93. Over the past 10 years, this metric has ranged from a low of 5.68 to a high of 28.90. The Biotechnology industry median Quick Ratio is 3.60. Prothena's value of 10.43 is 189.7% above this industry median. Based on the distribution chart, Prothena ranks #283 out of 1412 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, reflecting its overall financial health beyond just this single metric.
How does Prothena's Quick Ratio compare to CTNM and ASMB?
According to the Biotechnology industry distribution chart, Prothena ranks #283 out of 1412 companies for Quick Ratio. This places Prothena in the top 20% of its industry — outperforming the majority of peers. The industry median Quick Ratio is 3.60. Prothena's value of 10.43 is 189.7% above this benchmark. Historically, Prothena's own Quick Ratio has ranged from 5.68 to 28.90 over the past decade. While the company's 10-year median is 12.93 vs. the industry median of 3.60, 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 Quick Ratio for a Biotechnology company?
The median Quick Ratio among Biotechnology companies is 3.60, based on 1,412 companies in the industry. Companies in the top quartile (top 25%) have a Quick Ratio significantly above this median, while those in the bottom quartile fall well below. However, Quick Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Prothena's current Quick Ratio of 10.43 is 189.7% 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 Quick Ratio mean?
A high Quick Ratio can signal that a stock is expensive relative to its fundamentals. Quick ratio is the ratio of current assets less inventory to current liabilities. View historical data on Prothena and its competitors. For the Biotechnology industry, the median Quick Ratio is 3.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Prothena's current Quick Ratio is 10.43, which is 19% below median its own 10-year median of 12.93. 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?
Prothena (STU:0PT) has a current Quick Ratio of 10.43. The stock's GF Value™ is €12.92, compared to a current price of €8.41 — trading 34.9% below its estimated fair value. The current Quick Ratio is 10.43, which is 19% below median its 10-year median of 12.93 and 189.7% above the Biotechnology industry median of 3.60. 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 Quick Ratio calculated?
Quick Ratio is calculated from a company's financial statements. For Prothena (STU:0PT), the current Quick Ratio is 10.43 as of Mar. 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 (STU:0PT) Overvalued in 2026?
Based on GuruFocus' analysis, Prothena stock appears to be undervalued.
The current stock price of €8.41 is trading 34.9% below its estimated GF Value™ of €12.92.
Key valuation signals for STU:0PT:
Quick Ratio: 10.43 (19% below median its 10-year median of 12.93)
GF Value™: €12.92 vs. price of €8.41 (34.9% below fair value)
Industry Position: 189.7% above the Biotechnology median (#283 of 1412)
No single metric tells the full story. See the STU:0PT 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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