Prothena (PRTA) Technical Analysis

As of 2026-07-22, PRTA last traded at 8.44 USD (-3.54% on the day) and is in a downtrend on the daily timeframe — price below falling 50-DMA, 50-DMA below 200-DMA. Nearest levels: 8.38 USD support below, 9.59 USD resistance above. 14-day RSI is 28.9 (oversold).

Last updated 2026-07-22 · Source: FMP end-of-day prices (adjusted); indicators computed by SniperIQ

Is PRTA in an uptrend or downtrend?

Prothena is in a downtrend — price below falling 50-DMA, 50-DMA below 200-DMA.

Last close8.44 USD (-3.54%)
20-day average9.226 USD
50-day average9.202 USD
200-day average9.694 USD

Key support and resistance levels for PRTA

Derived from swing pivots over the last 200 sessions:

LevelTypeStrengthTouches
9.59 USDResistanceMinor1
9.69 USDResistanceMinor1
10.12 USDResistanceModerate2
LevelTypeStrengthTouches
8.38 USDSupportMinor1
8.215 USDSupportModerate2
8.07 USDSupportMinor1

PRTA 52-week range, momentum and volatility

52-week high11.8 USD (28.5% below)
52-week low6.29 USD (34.2% above)
14-day RSI28.9 (Oversold)
14-day ATR0.429 USD (5.08% of price, High volatility)

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Frequently asked questions

Is Prothena (PRTA) in an uptrend or downtrend?

As of 2026-07-22, PRTA is in a downtrend on the daily timeframe — price below falling 50-DMA, 50-DMA below 200-DMA. Last close 8.44 USD vs 50-day average 9.202 USD and 200-day average 9.694 USD.

What are the key support and resistance levels for PRTA?

Nearest support is around 8.38 USD (minor, 1 touch). Nearest resistance is around 9.59 USD (minor). Levels are derived from swing pivots over the last ~200 sessions.

What is PRTA's 52-week high and low?

Over the last 52 weeks, PRTA traded between 6.29 USD and 11.8 USD. It is currently 28.5% below its 52-week high.

Is PRTA overbought or oversold?

The 14-day RSI is 28.9 — in oversold territory (<30). Momentum reads as oversold.

How volatile is PRTA?

Its 14-day Average True Range is 0.429 (5.08% of price) — high volatility relative to price.