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PRTA

Prothena Corporation plc Ordinary Shares
Data: 2026-08-24
$9.32
Price
-1.16%
Change
$11.80
52W High
$7.73
52W Low
Full AI Analysis Buy/Sell Forecast Trendline Why Moving Charts Options

Prothena Corp PLC is a 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. The company's clinical pipeline of antibody-based product candidates targets a range of indications, including Amyloid Light-chain (AL) amyloidosis (NEOD001), Parkinson's disease and other related synucleinopathies (PRX002), and inflammatory diseases, including ATTR amyloidosis [Coramitug (PRX004)], Alzheimer's disease (PRX123), Neurodegeneration (PRXPRX019), and Others.

Quick Stats
Aug 24, 2026

43.6

AI Score

HOLD

0.22

Volume Ratio

TBA

Next Earnings

16

+ve Days (30d)

12

-ve Days (30d)

PRTA Stock Summary

Last updated Aug 24, 2026

PRTA is currently trading at $9.32, positioned below its 200-day moving average of $9.53, suggesting bearish momentum. The stock has a 52-week range of $7.73 to $11.8.

Technical Analysis: The 50-day moving average stands at $8.96, which is below the current price, signaling bullish near-term momentum. The RSI (Relative Strength Index) reads 55.935, suggesting the stock is neutral with balanced momentum.

Money Flow Indicators: The Chaikin Money Flow (20-day) is 0.182, which is positive, indicating accumulation by institutional investors. Our AI-powered investment score rates PRTA at 43.6/100 with a HOLD recommendation.

PRTA (Prothena Corporation plc Ordinary Shares) Indicators

Last updated Aug 24, 2026

Indicator Value
RSI(14) 55.935
CMF (20) 0.182
ROC (10) 1.645
ADX (14) 12.991
Indicator Value
MACD (12,26,9) 0.098
AROONOSC (14) 71.429
WILLAMS %R (14) -16.892
MFI (14) 59.333
PRTA Technical Chart
  • Candlesticks: Green = price up, Red = price down. Body shows open/close, wicks show high/low.
  • SMAs: Moving averages help identify trends. Price above SMA = bullish, below = bearish.
  • Options OI: Shows max open interest strikes. High OI = significant price levels.
  • Volume Profile: Shows price levels with most trading activity. POC = Point of Control (highest volume).
  • Earnings: Vertical lines mark earnings dates. Watch for volatility around these dates.
  • Gamma Walls: Key support/resistance from options gamma exposure. Orange = resistance above, Purple = support below.
  • Fibonacci Retracement: Auto-calculated support/resistance levels based on recent high/low. Key levels: 23.6%, 38.2%, 50%, 61.8%, 78.6%.
  • Unusual Activity: Highlights days with abnormal volume (2x+ average) or large price moves (5%+). Red marker = unusual activity detected.
Technical Indicators

Select indicators above to analyze technical patterns

Indicators will appear below the price chart with perfectly aligned dates

Volume Profile Analysis

Horizontal histogram showing volume distribution at each price level with buying/selling pressure

PRTA Price vs Max Options Open Interest
PRTA Max Change In Options Open Interest

PRTA Options - Sort by Max open Interest (near term)

24th August 2026 (Data is delayed in normal mkt. hours)

Type Expiration Strike OI Change in
OI		 Volume Ask PC Delta Vega Volatility % change Track

PRTA Daily Out of Money Options - Sort by Max open Interest (near term)

24th August 2026 (Data is delayed in normal mkt. hours)

Type Expiration Strike OI Change in
OI		 Volume Ask PC Delta Vega Volatility % change Track

PRTA Daily In the Money Options - Sort by Max open Interest (near term)

24th August 2026 (Data is delayed in normal mkt. hours)

Type Expiration Strike OI Change in
OI		 Volume Ask PC Delta Vega Volatility % change Track

PRTA Most Active Options by Volume(near term)

24th August 2026 (Data is delayed in normal mkt. hours)

Type Expiration Strike Volume OI Change in
OI		 Ask PC Delta Vega Volatility % change Track

Prothena Corporation plc Ordinary Shares is above the 50 Day SMA but below the 200 Day SMA — short-term strength within a longer-term downtrend (Mixed).

PRTA Moving Averages Analysis

Prothena Corporation plc Ordinary Shares has been above 50 day sma 1 times in last 30 days. Last time it was above 50 day sma was on Aug 24, 2026

PRTA (Prothena Corporation plc Ordinary Shares) Simple Moving Averages

Moving Averages are last updated Aug 24, 2026

Days MA
10 9.11
20 8.83
30 8.75
50 8.96
100 9.51
200 9.53

PRTA Fundamental Analysis

P/E (Forward) 10.627
P/E (Trailing) --
Market Cap ($) 476.9 million
Earnings/Share ($) -0.82
Net Profit Margin (%) -0.8068
Dividend/Share ($) --
EPS Estimate Current Year ($) 0.65
EPS Estimate Next Year ($) -1.52
WallStreet Target Price ($) 21.40
Most Recent Quarter