PRTA (Prothena Corporation plc Ordinary Shares)
Expected Move & Straddle Price History
The expected move for PRTA is derived from at-the-money straddle pricing — the market's implied one-standard-deviation move through the next 30 days. Comparing it to realized moves reveals when options are pricing in too much (premium-selling regime) vs too little (premium-buying regime).
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
Current PRTA Expected Move
30-Day Straddle
$1.48
7-Day Straddle
$1.48
Avg IV
1.3%
IV Rank
20%
Implied one-standard-deviation move through the next 30 days. Compare to PRTA's realized
move over the same window to gauge whether options are pricing in too much (premium-selling regime)
or too little (premium-buying regime). The
Expected Move Tracker ranks every symbol by
this measure.
PRTA Straddle Price — Last 60 Days
| Date | 30D Straddle | 7D Straddle | Avg IV | IV Rank |
|---|---|---|---|---|
| 20260626 | $1.48 | $1.48 | 1.3% | 20% |
| 20260625 | $1.20 | $1.20 | 1.1% | 14% |
| 20260624 | $1.30 | $1.30 | 1.9% | 38% |
| 20260623 | $1.43 | $1.43 | 1.2% | 15% |
| 20260622 | $1.20 | $1.20 | 1.4% | 23% |
| 20260618 | $1.35 | $0.60 | 1.2% | 16% |
| 20260617 | $1.75 | $3.33 | 1.5% | 24% |
| 20260616 | $1.20 | $1.20 | 1.5% | 27% |
| 20260615 | $1.10 | $0.82 | 1.6% | 29% |
| 20260613 | $1.25 | $1.12 | 1.6% | 30% |
| 20260612 | $1.15 | $0.60 | 2.0% | 40% |
| 20260611 | $1.32 | $0.62 | 1.3% | 19% |
| 20260610 | $1.25 | $0.95 | 2.0% | 39% |
| 20260609 | $1.55 | $1.50 | 1.6% | 28% |
| 20260608 | $1.35 | $0.73 | 1.5% | 25% |
| 20260605 | $1.73 | $1.10 | 1.3% | 21% |
| 20260604 | $1.43 | $0.68 | 0.7% | 0% |
| 20260603 | $1.55 | $0.93 | 1.3% | 20% |
| 20260602 | $1.12 | $1.12 | 1.4% | 22% |
| 20260601 | $1.32 | $1.32 | 1.1% | 13% |
| 20260529 | $1.12 | $1.12 | 3.1% | 73% |
| 20260528 | $1.05 | $1.05 | 2.9% | 66% |
| 20260527 | $1.10 | $1.10 | 3.1% | 73% |
| 20260526 | $3.58 | $3.58 | 3.0% | 72% |
| 20260522 | $1.38 | $1.38 | 2.9% | 67% |
| 20260521 | $1.17 | $1.17 | 0.8% | 2% |
| 20260520 | $3.17 | $3.17 | 1.0% | 10% |
| 20260519 | $1.40 | $1.40 | 1.0% | 10% |
| 20260518 | $1.25 | $1.25 | 2.8% | 65% |
| 20260515 | $1.70 | $0.45 | 2.8% | 66% |
| 20260514 | $1.43 | $0.55 | 2.6% | 59% |
| 20260513 | $1.38 | $0.48 | 3.2% | 76% |
| 20260512 | $1.70 | $0.80 | 0.8% | 4% |
| 20260511 | $1.88 | $0.85 | 3.1% | 72% |
| 20260510 | $1.67 | $0.77 | 2.0% | 39% |
| 20260508 | $1.67 | $0.77 | 2.2% | 46% |
| 20260507 | $2.25 | $0.97 | 2.2% | 47% |
| 20260506 | $2.00 | $1.18 | 1.7% | 30% |
| 20260505 | $3.70 | $1.75 | 1.9% | 36% |
| 20260504 | $2.38 | $2.83 | 2.1% | 44% |
| 20260502 | $2.52 | $2.52 | 2.3% | 49% |
| 20260501 | $2.50 | $2.50 | 2.1% | 43% |
| 20260430 | $1.80 | $1.80 | 1.2% | 15% |
| 20260429 | $2.92 | $2.92 | 2.2% | 45% |
| 20260428 | $4.55 | $4.55 | 1.2% | 14% |
| 20260427 | $2.33 | $2.33 | 3.3% | 79% |
| 20260424 | $1.30 | $1.30 | 3.2% | 75% |
| 20260423 | $1.95 | $1.95 | 3.1% | 73% |
| 20260422 | $1.40 | $1.40 | 3.4% | 81% |
| 20260421 | $1.58 | $1.58 | 3.0% | 71% |
| 20260420 | $3.35 | $3.35 | 2.9% | 68% |
| 20260417 | $1.30 | $0.25 | 3.3% | 79% |
| 20260416 | $3.08 | $0.62 | 4.0% | 100% |
| 20260415 | $1.23 | $0.95 | 3.2% | 78% |
| 20260414 | $1.60 | $0.90 | 3.1% | 77% |
| 20260413 | $1.52 | $0.90 | 3.8% | 100% |
| 20260410 | $1.80 | $1.58 | 0.7% | 0% |
| 20260409 | $1.60 | $0.78 | 1.4% | 37% |
| 20260408 | $1.80 | $2.67 | 1.0% | 13% |
| 20260407 | $1.77 | $0.85 | 0.9% | 7% |