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Implied Movement: Monthly Straddle Tracking History
Get Straddle History:

 
Prothena Corporation plc (PRTA) - NASDAQ Next Earnings Date: OS Estimate: Feb. 17, 2027 AC
OS Projected Window: Feb. 15, 2027 to Feb. 20, 2027
EVR: 3.0
Avg Daily Volume: 541,242    Market Cap: 443.4M
Sector: Healthcare    Short Interest: 15.17
Live Interactive Chart
Days to Next Earnings: 99 Days

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Sample Chart


 
Long Straddle/Strangle Performance
 
Tracking Statistics Available: 52
Earnings Date Pre-ER EVR IMPLIED MOVE APPROACHING EARNINGS Inside or Outside IMPL. Move
POST EARNINGS: At Market Close
Pre-ER Close Position Straddle @Trade Price Implied Move Max Move I/O Closing Move I/O Close Price Straddle @Trade Price Return
Nov. 5, 2026 AC 3.4 $7.89 @$8.00 $0.35
($7.89)
4.38% 3.54% I 1.01% I $7.97 $1.45
( $7.97 )
314.29%
Aug. 6, 2026 AC 3.6 $8.58 @$9.00 $0.57
($8.58)
6.33% -6.29% I 2.09% I $8.76 $0.75
( $8.76 )
31.58%
May 7, 2026 AC 3.5 $10.52 @$11.00 Get the OptionSlam Edge ..... become an Insider Member to view the detailed report.
Feb. 19, 2026 AC 3.5 $9.03 @$9.00
Nov. 6, 2025 AC 3.7 $10.08 @$10.00
Aug. 4, 2025 AC 3.8 $6.94 @$7.50
May 8, 2025 AC 3.5 $7.10 @$7.50
Feb. 20, 2025 AC 3.6 $15.25 @$15.00
Nov. 12, 2024 AC 3.8 $17.36 @$17.50
Aug. 8, 2024 AC 3.3 $19.68 @$20.00

 
 
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