PRTA Prothena Corp Forecast, Technical & Fundamental Analysis

PRTA's MACD Histogram just turned positive

The Moving Average Convergence Divergence (MACD) for PRTA turned positive on September 24, 2025. Looking at past instances where PRTA's MACD turned positive, the stock continued to rise in of 45 cases over the following month. The odds of a continued upward trend are .

Technical Analysis (Indicators)

Bullish Trend Analysis

The Momentum Indicator moved above the 0 level on September 24, 2025. You may want to consider a long position or call options on PRTA as a result. In of 94 past instances where the momentum indicator moved above 0, the stock continued to climb. 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 291 cases, the price rose further within the following month. The odds of a continued upward trend are .

The Aroon Indicator entered an Uptrend today. In of 137 cases where PRTA Aroon's Indicator entered an Uptrend, the price rose further within the following month. The odds of a continued Uptrend are .

Bearish Trend Analysis

The RSI Indicator demonstrates that the ticker has stayed in the overbought zone for 10 days. The longer the ticker stays in the overbought zone, the sooner a price pull-back is expected.

The Stochastic Oscillator demonstrated that the ticker has stayed in the overbought zone for 10 days. The longer the ticker stays in the overbought zone, the sooner a price pull-back is expected.

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 September 29, 2025. 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 (1.680) is normal, around the industry mean (23.456). P/E Ratio (0.000) is within average values for comparable stocks, (54.341). Projected Growth (PEG Ratio) (0.000) is also within normal values, averaging (2.164). Dividend Yield (0.000) settles around the average of (0.044) among similar stocks. P/S Ratio (52.632) is also within normal values, averaging (347.799).

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.