PRTA Stock Analysis: Buy, Sell, or Hold?
PRTA - Prothena Corporation plc Ordinary Shares
$8.83
-0.41 (-4.44%)
▼
5d:
-7.05%
30d:
+11.63%
90d:
-15.9%
HOLD
MODERATE Confidence
Analysis Updated: Jul 13, 2026 12:00 AM ET
Earnings: Aug 03, 2026
19d
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Interactive Price Chart (1 Month)
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Bottom Line:
📊 HOLD: PRTA shows mixed signals. Fine to hold existing positions. Not urgent to buy or sell.
📊 HOLD: PRTA shows mixed signals. Fine to hold existing positions. Not urgent to buy or sell.
In-depth Analysis How we analyze
Valuation Analysis: PRTA is currently trading at $8.83, which is considered fair relative to its 30-day fair value range of $8.46 to $9.72. From a valuation perspective, the stock is trading at a discount (Forward PE: -6.7) compared to its historical average (18.0). At these levels, the market is pricing in 0% annual earnings growth. This growth rate appears achievable given the company's track record, suggesting the valuation is rational.
Technical Outlook: Technically, PRTA is in a strong uptrend. The price is currently testing key support at $8.76. A bounce from this level would confirm strength, while a break below could signal further downside. Short-term momentum is weak, with the stock down 4.4% recently.
Market Sentiment: PRTA has a weak technical setup (25/100), with bearish trendlines and momentum suggesting caution for short-term entries. In the options market, Implied Volatility is low (0th percentile), suggesting options premiums are relatively cheap. This makes it an attractive time for long options strategies if you have a directional bias. Wall Street analysts see significant upside, with an average price target of $21.40 (+142.4%). The stock is fairly positioned - fine to hold existing positions or accumulate slowly on dips, but not an urgent buy.
Technical Outlook: Technically, PRTA is in a strong uptrend. The price is currently testing key support at $8.76. A bounce from this level would confirm strength, while a break below could signal further downside. Short-term momentum is weak, with the stock down 4.4% recently.
Market Sentiment: PRTA has a weak technical setup (25/100), with bearish trendlines and momentum suggesting caution for short-term entries. In the options market, Implied Volatility is low (0th percentile), suggesting options premiums are relatively cheap. This makes it an attractive time for long options strategies if you have a directional bias. Wall Street analysts see significant upside, with an average price target of $21.40 (+142.4%). The stock is fairly positioned - fine to hold existing positions or accumulate slowly on dips, but not an urgent buy.
Quick Decision Summary
Current Position
FAIR
Historical Trading Range
$8.46 -
$9.72
Company Quality Score
45/100
(HOLD)
Volume Confirmation
HIGH
Confidence Score
59.6%
Protect Your Profits
Holding PRTA? Use our AI-powered strategies to protect your downside while keeping your long-term position.
View Profit Protection PlanAll Signals
- NEUTRAL: Price in fair range
- BULLISH: Options cheap (IV 0th percentile)
- BEARISH: Weak technical setup (25/100)
- BULLISH: High volume confirmation
- BEARISH: Downward momentum (-4.4%)
- BULLISH: Trading 142.4% below Wall St target ($21.40)
- BULLISH: Market expects only 0% annual growth - appears undervalued
- CAUTION: 5-day price weakness (-7.1%) - monitor closely
Trading Range Analysis
30-Day Trading Range
$8.46 -
$9.72
Current vs Trading Range
FAIR
Expected Move (7 Days)
±$0.77
(8.7%)
Support & Resistance Levels
Support Level
$8.76
Resistance Level
$10.15
Current Trend
Strong Uptrend
Technical data as of
Jul 13, 2026
Fundamental Context
Forward P/E (Next Year Est.)
-6.74
Wall Street Target
$21.40
(+142.4%)
Revenue Growth (YoY)
1706.4%
Profit Margin
-260.9%
PE vs Historical
-6.7 vs 18.0
CHEAP
Share & Embed Analysis
Last updated: July 14, 2026 6:14 AM ET
Data refreshes hourly during market hours. Next update: 7:14 AM
Data refreshes hourly during market hours. Next update: 7:14 AM
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Technical Signals Check
Is PRTA showing a specific setup today?
Insider Activity (6 Months)
0
Buys
0
Sells
0
Net
NEUTRAL
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Advanced PRTA Option Strategies
Professional options setups generated by AI based on today's PRTA price and gamma walls.
