PRTA Stock Price Prediction

Prothena Corporation PLC

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Advanced Chart

7.920

+0.89(12.660%)1D

Overview
Forecast
Valuation
Earnings

1-Day-Price-Prediction

-0.29%

1-Week Prediction

-2.8%

1-Month Prediction

-0.16%

2026 Prediction

-100%

2030 Prediction

-100%

Based on our advanced algorithm, we predict that PRTA stock price will experience significant movement in the coming periods. Our 1-day prediction estimates a price of $7.01, while the 1-week outlook suggests a value of $6.83. For the 1-month forecast, we project a price of $7.02. Looking further ahead, our 2026 projection estimates a value of $0.00, with a long-term 2030 forecast reaching $0.00. Stay informed and make strategic decisions with our data-driven insights!

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7.020

Should I Buy Prothena Corporation PLC Stock?

Based on our evaluation of the five key dimensions—Technical Signals, Moving Average trends, Short Sell Data, Similar Chart Pattern Matching and Seasonality Analysis—we have identified the following insights. PRTA has several positive signals and is within a rising trend, so we believe it will perform strongly in the next couple of days or weeks. We therefore hold a positive evaluation of this stock. Our analysis conclusion for this stock is a Strong Buy candidate.

PRTA stock price ended at $7.92 on Wednesday, after rising 12.66%

The Prothena Corporation PLC stock price increased by 12.66% on the last trading day (06 Aug 2025), rising from 7.52 to 7.92. Throughout the last trading session, the stock experienced a fluctuation of 10.03% , ranging from a day low of $7.28 to a day high of 8.01. The price has declined in 5 of the last 10 days, resulting in a total change of 17.16% during this period. On the last day, trading volume decrease by 1.54M shares, with the rising prices. This could serve as an early warning, indicating that risk may slightly increase in the coming days. In total, 3.11M shares were traded, amounting to approximately 23.83M.

PRTA Technical Signals

PRTA(Prothena Corporation PLC Corp) has 3 buy signals and 2 sell signals now. The current trend is downtrend starting from 2025-07-30. The total price change during this trend is +2.18%. Recently, the price has increased significantly with an increase in volume, indicating a strong bullish signal. The average turnover of PRTA over the last 5 trading days is 7.78M. Overall, the technical indicator signals lean more toward a Neutral outlook in the mid-term.

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PRTA Moving Average Analysis

Prothena Corporation PLC's overall moving average trend leans more bullish as of Thursday, August 7, 2025, with 1 negative signals and 3 positive signal. In the mid-term, the SMA_20 being above the SMA_60 signals a strong bullish trend. There will be some resistance from the lines at $7.60, and $8.00. A break-up above any of these levels will issue buy signals. There will be some support from the lines at $6.33, and $5.94. A break-down below any of these levels will issue sell signals.

PRTA Short Selling Analysis

The short sale ratio of Prothena Corporation PLC(PRTA) as of 05 Aug 2025 is 16.08%, rising from last trading day. With increasing price from 6.94 to 7.03. The short sell activity indicate that short sellers may be anticipating a price reversion.

Technical Signal

Technical Signals Summary

Neutral

Sell

Buy

Moving Average

Swing

Positive

Stock Price Above SMA_5

Short Term

Positive

SMA_5 Above SMA_20

Mid Term

Positive

SMA_20 Above SMA_60

Long Term

Positive

SMA_60 Above SMA_200

Short Selling

Close Price

Short Sale Ratio

Short Sale Volume

3 Bullish Signals

When Value satisfies Signal, Indicator signals Bullish

Indicators

Signal

Value

Meaning

Awesome Oscillator (5, 34)

AO_5_34 > 0

0.525

Bullish

Momentum (10 days)

MOM_10 > 0

0.5

Bullish

Moving Average Convergence Divergence (12, 26, 9)

MACD_12_26_9 > 0

0.194

Bullish

2 Bearish Signals

When Value satisfies Signal, Indicator signals Bearish

Indicators

Signal

Value

Meaning

Commodity Channel Index (20 days, 0.015 constant)

CCI_20_0.015 > 100

143.312

Bearish

Stochastic RSI %K (14, 14, 3, 3)

STOCHRSIk_14_14_3_3 > 80

86.722

Bearish

PRTA Stock Forecast

2026

2027

2028

2029

2030

2031

2032

2033

2034

2035

Month	Min. Price	Avg. Price	Max. Price	Potential ROI

No data

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In 2026, Prothena Corporation PLC (PRTA) is anticipated to change hands in a trading channel between $0.00 and $0.00.

Prothena Corporation PLC Stock Forecast 2026

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PRTA Price Prediction & Forecast by Similar Chart Analysis

Based on historical patterns and backtesting of stocks with similar movements to Prothena Corporation PLC(PRTA), our algorithm predicts PRTA's 1-month price at $7.16, with an 5.08%upwardshift. Using a similarity score up to 96.08%and other factors, This forecast updates weekly, adjusting for significant deviations.

Similar Chart

The price prediction chart for Prothena Corporation PLC (PRTA.O) stock, as of Sunday, August 3, 2025 , forecasts a 5.08% change over the next month, based on its high correlation with NECB.O stock patterns. The similarity between their price movements over the analyzed periods is 96.08%. The right panel lists other stocks with similar price patterns. This prediction is updated every week.

PRTA

Future prediction

Up: 5.08%

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NECB

Up: 5.08%Similarity: 96.08%

Name

Similarity

Up/Down

NECB.O

96.08%

+5.08%

TREX.N

95.95%

+9.31%

COF.N

95.69%

-0.20%

PPG.N

95.65%

-2.57%

ATHM.N

95.64%

+3.10%

W.N

95.58%

-15.32%

ADP.O

95.57%

-0.26%

FI.N

95.56%

+12.85%

BURL.N

95.49%

-3.70%

COST.O

95.49%

+4.98%

PRTA Seasonality Analysis

Based on PRTA's historical stock price data across all years, the probability of a positive return in August is36.36%, suggesting it maynotbe an ideal month to invest in PRTA. In contrast,Julyoffers the highest probability of positive returns at81.82%, making it a potentially strong month for investment.

However, this is only a prediction based on one method, and a comprehensive assessment of the stock's future trend should consider additional factors. Our final stock price commentary incorporates three main evaluation dimensions: technical signals, Moving Average trends, and similar chart pattern matching, with the first two dimensions carrying the primary weight to ensure a more robust and accurate forecast.

Monthly Seasonality

The radar chart shows that buying Prothena Corporation PLC (PRTA.O) stock in July has the highest probability of a positive return (81.82%), while December has the lowest probability (30.00%).

Performance Seasonality

The chart shows Prothena Corporation PLC. (PRTA)'s annual stock price return for the past three years, helping you analyze price trends and identify recurring trends on an annual basis.