8.81 USD
-0.25 (-2.76%)
At close: Jan 30, 2026
8.81 USD
0 (0%)
After Hours: 1/30/2026, 8:13:54 PM
Overall PRTA gets a fundamental rating of 3 out of 10. We evaluated PRTA against 524 industry peers in the Biotechnology industry. No worries on liquidiy or solvency for PRTA as it has an excellent financial health rating, but there are worries on the profitability. PRTA is valued expensive and it does not seem to be growing.
1. Profitability
1.1 Basic Checks
- PRTA had negative earnings in the past year.
- PRTA had a negative operating cash flow in the past year.
- PRTA had negative earnings in 4 of the past 5 years.
- In the past 5 years PRTA reported 4 times negative operating cash flow.
1.2 Ratios
- PRTA has a Return On Assets of -79.53%. This is in the lower half of the industry: PRTA underperforms 66.79% of its industry peers.
- Looking at the Return On Equity, with a value of -95.07%, PRTA is in line with its industry, outperforming 47.52% of the companies in the same industry.
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| ROA | -79.53% | ||
| ROE | -95.07% | ||
| ROIC | N/A |
ROA(3y)-19.63%
ROA(5y)-16.25%
ROE(3y)-23.37%
ROE(5y)-23.22%
ROIC(3y)N/A
ROIC(5y)N/A
1.3 Margins
- PRTA does not have Profit Margin and Operating Margin and Gross Margin available, so we won't be analyzing them here.
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| OM | N/A | ||
| PM (TTM) | N/A | ||
| GM | N/A |
OM growth 3YN/A
OM growth 5YN/A
PM growth 3YN/A
PM growth 5YN/A
GM growth 3YN/A
GM growth 5YN/A
2. Health
2.1 Basic Checks
- PRTA does not have a ROIC to compare to the WACC, probably because it is not profitable.
- PRTA has more shares outstanding than it did 1 year ago.
- The number of shares outstanding for PRTA has been increased compared to 5 years ago.
- There is no outstanding debt for PRTA. This means it has a Debt/Equity and Debt/FCF ratio of 0 and it is amongst the best of the sector and industry.
2.2 Solvency
- PRTA has an Altman-Z score of -1.39. This is a bad value and indicates that PRTA is not financially healthy and even has some risk of bankruptcy.
- With a Altman-Z score value of -1.39, PRTA perfoms like the industry average, outperforming 54.77% of the companies in the same industry.
- There is no outstanding debt for PRTA. This means it has a Debt/Equity and Debt/FCF ratio of 0 and it is amongst the best of the sector and industry.
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| Debt/Equity | 0 | ||
| Debt/FCF | N/A | ||
| Altman-Z | -1.39 |
ROIC/WACCN/A
WACC7.65%
2.3 Liquidity
- PRTA has a Current Ratio of 6.61. This indicates that PRTA is financially healthy and has no problem in meeting its short term obligations.
- With a decent Current ratio value of 6.61, PRTA is doing good in the industry, outperforming 67.37% of the companies in the same industry.
- PRTA has a Quick Ratio of 6.61. This indicates that PRTA is financially healthy and has no problem in meeting its short term obligations.
- Looking at the Quick ratio, with a value of 6.61, PRTA is in the better half of the industry, outperforming 68.13% of the companies in the same industry.
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| Current Ratio | 6.61 | ||
| Quick Ratio | 6.61 |
3. Growth
3.1 Past
- The earnings per share for PRTA have decreased strongly by -85.89% in the last year.
- PRTA shows a very negative growth in Revenue. In the last year, the Revenue has decreased by -91.16%.
- Measured over the past years, PRTA shows a very strong growth in Revenue. The Revenue has been growing by 178.96% on average per year.
EPS 1Y (TTM)-85.89%
EPS 3YN/A
EPS 5YN/A
EPS Q2Q%38.18%
Revenue 1Y (TTM)-91.16%
Revenue growth 3Y-12.33%
Revenue growth 5Y178.96%
Sales Q2Q%148.97%
3.2 Future
- The Earnings Per Share is expected to grow by 6.47% on average over the next years.
- PRTA is expected to show a decrease in Revenue. In the coming years, the Revenue will decrease by -6.53% yearly.
EPS Next Y-108.18%
EPS Next 2Y50.47%
EPS Next 3Y17.28%
EPS Next 5Y6.47%
Revenue Next Year-92.13%
Revenue Next 2Y0.52%
Revenue Next 3Y-38.1%
Revenue Next 5Y-6.53%
3.3 Evolution
- When comparing the Revenue growth rate of the last years to the growth rate of the upcoming years, we see that the growth is decreasing.
4. Valuation
4.1 Price/Earnings Ratio
- The Price/Earnings Ratio is negative for PRTA. In the last year negative earnings were reported.
- A Price/Forward Earnings ratio of 14.50 indicates a correct valuation of PRTA.
- Compared to the rest of the industry, the Price/Forward Earnings ratio of PRTA indicates a rather cheap valuation: PRTA is cheaper than 96.18% of the companies listed in the same industry.
- PRTA's Price/Forward Earnings ratio indicates a valuation a bit cheaper than the S&P500 average which is at 25.57.
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| PE | N/A | ||
| Fwd PE | 14.5 |
4.2 Price Multiples
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| P/FCF | N/A | ||
| EV/EBITDA | N/A |
4.3 Compensation for Growth
- PRTA's earnings are expected to grow with 17.28% in the coming years. This may justify a more expensive valuation.
PEG (NY)N/A
PEG (5Y)N/A
EPS Next 2Y50.47%
EPS Next 3Y17.28%
5. Dividend
5.1 Amount
- No dividends for PRTA!.
| Industry Rank | Sector Rank | ||
|---|---|---|---|
| Dividend Yield | 0% |
PROTHENA CORP PLC / PRTA FAQ
What is the ChartMill fundamental rating of PROTHENA CORP PLC (PRTA) stock?
ChartMill assigns a fundamental rating of 3 / 10 to PRTA.
What is the valuation status for PRTA stock?
ChartMill assigns a valuation rating of 2 / 10 to PROTHENA CORP PLC (PRTA). This can be considered as Overvalued.
What is the profitability of PRTA stock?
PROTHENA CORP PLC (PRTA) has a profitability rating of 0 / 10.