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 139.45% to -23 cents per share on October 29
Q3'26
Est.
$-0.24
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 199.64K shares outstanding, the current market capitalization sits at 468.19M.
A.I.dvisor indicates that over the last year, PRTA has been loosely correlated with VIR. These tickers have moved in lockstep 44% of the time. This A.I.-generated data suggests there is some statistical probability that if PRTA jumps, then VIR could also see price increases.
PRTA in upward trend: price may jump up because it broke its lower Bollinger Band on July 31, 2026
PRTA may jump back above the lower band and head toward the middle band. Traders may consider buying the stock or exploring call options. In of 42 cases where PRTA's price broke its lower Bollinger Band, its price rose further in the following month. The odds of a continued upward trend are .
Technical Analysis (Indicators)
Bullish Trend Analysis
The Stochastic Oscillator suggests the stock price trend may be in a reversal from a downward trend to an upward trend. of 72 cases where PRTA's Stochastic Oscillator exited the oversold zone resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are .
The Momentum Indicator moved above the 0 level on August 05, 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 .
Following a 3-day Advance, the price is estimated to grow further. Considering data from situations where PRTA advanced for three days, in of 275 cases, the price rose further within the following month. The odds of a continued upward trend are .
Bearish Trend Analysis
PRTA moved below its 50-day moving average on July 10, 2026 date and that indicates a change from an upward trend to a downward trend.
The 10-day moving average for PRTA crossed bearishly below the 50-day moving average on July 14, 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 .
The 50-day moving average for PRTA moved below the 200-day moving average on July 06, 2026. This could be a long-term bearish signal for the stock as the stock shifts to an downward trend.
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 .
The Aroon Indicator for PRTA entered a downward trend on August 07, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Fundamental Analysis (Ratings)
The Tickeron Seasonality Score of (best 1 - 100 worst) indicates that the company is fair valued 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 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 (1.632) is normal, around the industry mean (20.090). P/E Ratio (0.000) is within average values for comparable stocks, (25.983). Projected Growth (PEG Ratio) (0.000) is also within normal values, averaging (3.649). Dividend Yield (0.000) settles around the average of (0.019) among similar stocks. P/S Ratio (8.969) is also within normal values, averaging (464.478).
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 93, placing this stock worse than average.
