PRTA Stock Prothena (PRTA, $8.4) Moving Average Convergence Divergence (MACD) Histogram turned positive on October 26, 2026
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This is a Bullish indicator signaling PRTA's price could rise from here. Traders may explore going long the stock or buying call options. A.I. dvisor identified 46 similar cases where PRTA's MACD histogram became positive, and of them led to successful outcomes. Odds of Success:
PRTA in +1.80% Uptrend, rising for three consecutive days on October 20, 2026
Moving higher for three straight days is viewed as a bullish sign. Keep an eye on this stock for future growth. Considering data from situations where PRTA advanced for three days, in 201 of 273 cases, the price rose further within the following month. The odds of a continued upward trend are 74%.
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. 50 of 74 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 68%.
The Moving Average Convergence Divergence (MACD) for PRTA just turned positive on October 26, 2026. Looking at past instances where PRTA's MACD turned positive, the stock continued to rise in 31 of 46 cases over the following month. The odds of a continued upward trend are 67%.
Bearish Trend Analysis
The Momentum Indicator moved below the 0 level on October 21, 2026. You may want to consider selling the stock, shorting the stock, or exploring put options on PRTA as a result. In 83 of 95 cases where the Momentum Indicator fell below 0, the stock fell further within the subsequent month. The odds of a continued downward trend are 87%.
PRTA moved below its 50-day moving average on September 23, 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 September 21, 2026. This indicates that the trend has shifted lower and could be considered a sell signal. In 12 of 12 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 90%.
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 50 of 62 cases within the following month. The odds of a continued downward trend are 86%.
The Aroon Indicator for PRTA entered a downward trend on October 14, 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 Valuation Rating of 15 (best 1 - 100 worst) indicates that the company is slightly undervalued 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 (1.503) is normal, around the industry mean (3.037). P/E Ratio (-10.370) is within average values for comparable stocks, (-1.223). Projected Growth (PEG Ratio) (0.000) is also within normal values, averaging (9.059). Dividend Yield (0.000) settles around the average of (135.883) among similar stocks. P/S Ratio (8.104) is also within normal values, averaging (439.237).
The Tickeron PE Growth Rating for this company is 35 (best 1 - 100 worst), pointing to consistent 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 Price Growth Rating for this company is 72 (best 1 - 100 worst), indicating slightly worse than average 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 SMR rating for this company is 94 (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 100 (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.