PRTA Prothena Corp Forecast, Technical & Fundamental Analysis
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... Show more
PRTA is expected to report earnings to fall 136.12% to -21 cents per share on October 29
Q3'26
Est.
$-0.22
Q1'26
Beat
by $0.95
Q4'25
Beat
by $0.19
Q3'25
Beat
by $0.04
Q2'25
Missed
by $1.12
The last earnings report on May 07 showed earnings per share of 60 cents, beating the estimate of -34 cents. With 223.58K shares outstanding, the current market capitalization sits at 504.13M.
A.I.dvisor indicates that over the last year, PRTA has been loosely correlated with CRBU. These tickers have moved in lockstep 45% of the time. This A.I.-generated data suggests there is some statistical probability that if PRTA jumps, then CRBU could also see price increases.
Aroon Indicator for PRTA shows an upward move is likely
PRTA's Aroon Indicator triggered a bullish signal on September 04, 2026. Tickeron's A.I.dvisor detected that the AroonUp green line is above 70 while the AroonDown red line is below 30. When the up indicator moves above 70 and the down indicator remains below 30, it is a sign that the stock could be setting up for a bullish move. Traders may want to buy the stock or look to buy calls options. A.I.dvisor looked at 134 similar instances where the Aroon Indicator showed a similar pattern. In of the 134 cases, the stock moved higher in the days that followed. This puts the odds of a move higher at .
Technical Analysis (Indicators)
Bullish Trend Analysis
The Momentum Indicator moved above the 0 level on August 27, 2026. You may want to consider a long position or call options on PRTA as a result. In of 93 past instances where the momentum indicator moved above 0, the stock continued to climb. The odds of a continued upward trend are .
The Moving Average Convergence Divergence (MACD) for PRTA just turned positive on August 06, 2026. Looking at past instances where PRTA's MACD turned positive, the stock continued to rise in of 46 cases over the following month. The odds of a continued upward trend are .
PRTA moved above its 50-day moving average on August 19, 2026 date and that indicates a change from a downward trend to an upward trend.
The 10-day moving average for PRTA crossed bullishly above the 50-day moving average on August 18, 2026. This indicates that the trend has shifted higher and could be considered a buy signal. In of 12 past instances when the 10-day crossed above the 50-day, the stock continued to move higher over the following month. The odds of a continued upward trend are .
Following a 3-day Advance, the price is estimated to grow further. Considering data from situations where PRTA advanced for three days, in of 269 cases, the price rose further within the following month. The odds of a continued upward trend are .
Bearish Trend Analysis
The Stochastic Oscillator has been in the overbought zone for 2 days. Expect a price pull-back in the near future.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where PRTA declined for three days, the price rose further in of 62 cases within the following month. The odds of a continued downward trend are .
PRTA broke above its upper Bollinger Band on August 10, 2026. This could be a sign that the stock is set to drop as the stock moves back below the upper band and toward the middle band. You may want to consider selling the stock or exploring put options.
Fundamental Analysis (Ratings)
The Tickeron Price Growth Rating for this company is (best 1 - 100 worst), indicating steady price growth. PRTA’s price grows at a higher rate over the last 12 months as compared to S&P 500 index constituents.
The Tickeron Valuation Rating of (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (1.757) is normal, around the industry mean (20.539). P/E Ratio (0.000) is within average values for comparable stocks, (27.551). Projected Growth (PEG Ratio) (0.000) is also within normal values, averaging (2.538). Dividend Yield (0.000) settles around the average of (0.018) among similar stocks. P/S Ratio (9.662) is also within normal values, averaging (444.187).
The Tickeron Seasonality Score of (best 1 - 100 worst) indicates that the company is significantly overvalued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
The Tickeron PE Growth Rating for this company is (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron SMR rating for this company is (best 1 - 100 worst), indicating weak sales and an unprofitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Profit vs. Risk Rating rating for this company is (best 1 - 100 worst), indicating that the returns do not compensate for the risks. PRTA’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 92, placing this stock worse than average.
