Prothena (PRTA) Stock Chart
NASDAQ: PRTAHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 7, 4:00 PM ET · Delayed 15 min
After hours: 8.48 0.00%
PRTA technical summary
PRTA is trading 4.2% below its 50-day simple moving average of $8.86 and 8.8% below its 200-day average of $9.30. The 50-day average is below the 200-day average, a configuration technical analysts associate with a longer-term downtrend. The 14-day Relative Strength Index (RSI) is 47.1, within the neutral 30 to 70 band.
Over the past year, the stock ranged from $7.73 (Jun 11, 2026) to $11.80 (May 8, 2026); the current price sits 18% of the way from the low to the high. Annualized 30-day volatility is 47.2%. Based on the last session's high, low and close, the classic pivot point is $8.33, with first resistance at $8.78 and first support at $8.03.
These indicators describe past price behavior for Prothena; they are not predictions.
Summary generated from market data by MetaCap's automated system. Methodology
Technical indicators
- RSI (14)
- 47.1
- 50-day SMA
- 8.86
- 200-day SMA
- 9.30
- Beta
- —
- 1Y high
- 11.80 (May 8)
- 1Y low
- 7.73 (Jun 11)
- Last close
- 8.48
PRTA price performance
1 week
+1.19%
1 month
-11.11%
3 months
-13.91%
6 months
-20.38%
Year to date
-11.20%
1 year
-16.62%
3 years
-80.76%
5 years
-86.64%
PRTA price return, excluding dividends.
Moving averages
| Period | Simple (SMA) | Exponential (EMA) |
|---|---|---|
| 5-day | 8.33Price above | 8.35Price above |
| 10-day | 8.42Price above | 8.43Price above |
| 20-day | 8.54Price below | 8.58Price below |
| 50-day | 8.86Price below | 8.81Price below |
| 100-day | 8.99Price below | 9.04Price below |
| 200-day | 9.30Price below | 9.33Price below |
Moving averages are computed from daily closing prices over the past year. What is a moving average?
Pivot points
| Level | Price |
|---|---|
| Resistance 3 (R3) | 9.53 |
| Resistance 2 (R2) | 9.08 |
| Resistance 1 (R1) | 8.78 |
| Pivot point | 8.33 |
| Support 1 (S1) | 8.03 |
| Support 2 (S2) | 7.58 |
| Support 3 (S3) | 7.28 |
Classic floor-trader pivots from the last session's high, low and close. How pivot points work