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 46.38% to 32 cents per share on August 10
Q2'26
Est.
$0.32
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 656.31K shares outstanding, the current market capitalization sits at 460.18M.
A.I.dvisor indicates that over the last year, PRTA has been loosely correlated with RCKT. These tickers have moved in lockstep 62% of the time. This A.I.-generated data suggests there is some statistical probability that if PRTA jumps, then RCKT could also see price increases.
PRTA in downward trend: price dove below 50-day moving average on June 01, 2026
PRTA moved below its 50-day moving average on June 01, 2026 date and that indicates a change from an upward trend to a downward trend. In of 38 similar past instances, the stock price decreased further within the following month. The odds of a continued downward trend are .
Technical Analysis (Indicators)
Bearish Trend Analysis
The 10-day RSI Indicator for PRTA moved out of overbought territory on April 29, 2026. This could be a bearish sign for the stock. Traders may want to consider selling the stock or buying put options. Tickeron's A.I.dvisor looked at 26 similar instances where the indicator moved out of overbought territory. In of the 26 cases, the stock moved lower in the following days. This puts the odds of a move lower at .
The Momentum Indicator moved below the 0 level on June 01, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on PRTA as a result. In of 92 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are .
The Moving Average Convergence Divergence Histogram (MACD) for PRTA turned negative on June 02, 2026. This could be a sign that the stock is set to turn lower in the coming weeks. Traders may want to sell the stock or buy put options. Tickeron's A.I.dvisor looked at 44 similar instances when the indicator turned negative. In of the 44 cases the stock turned lower in the days that followed. This puts the odds of success at .
The 10-day moving average for PRTA crossed bearishly below the 50-day moving average on May 19, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In of 11 past instances when the 10-day crossed below the 50-day, the stock continued to move higher over the following month. The odds of a continued downward trend are .
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 .
Bullish Trend Analysis
The Stochastic Oscillator demonstrated that the ticker has stayed in the oversold zone for 2 days, which means it's wise to expect a price bounce in the near future.
Following a 3-day Advance, the price is estimated to grow further. Considering data from situations where PRTA advanced for three days, in of 278 cases, the price rose further within the following month. The odds of a continued upward trend are .
PRTA may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options.
The Aroon Indicator entered an Uptrend today. In of 148 cases where PRTA Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are .
Fundamental Analysis (Ratings)
The Tickeron Price Growth Rating for this company is (best 1 - 100 worst), indicating fairly steady price growth. PRTA’s price grows at a lower 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 (1.472) is normal, around the industry mean (19.817). P/E Ratio (0.000) is within average values for comparable stocks, (36.300). Projected Growth (PEG Ratio) (0.000) is also within normal values, averaging (1.691). PRTA has a moderately low Dividend Yield (0.000) as compared to the industry average of (0.039). P/S Ratio (8.177) is also within normal values, averaging (355.038).
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 94, placing this stock worse than average.
