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Implied Movement: Monthly Straddle Tracking History
Get Straddle History:

 
Prothena Corporation plc (PRTA) - NASDAQ Next Earnings Date: Estimated on May 7, 2026
OS Projected Window: May 4, 2026 to May 9, 2026
EVR: 3.5
Avg Daily Volume: 492,070    Market Cap: 474.2M
Sector: Healthcare    Short Interest: 13.13
Live Interactive Chart
Days to Next Earnings: 55 Days

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Sample Chart


 
Long Straddle/Strangle Performance
 
Tracking Statistics Available: 49
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
Feb. 19, 2026 AC 3.5 $9.03 @$9.00 $1.60
($9.03)
17.78% -9.19% I -0.11% I $9.02 $0.55
( $9.02 )
-65.62%
Nov. 6, 2025 AC 3.7 $10.08 @$10.00 $3.23
($10.08)
32.3% 8.73% I 4.76% I $10.56 $0.95
( $10.56 )
-70.59%
Aug. 4, 2025 AC 3.8 $6.94 @$7.50 Get the OptionSlam Edge ..... become an Insider Member to view the detailed report.
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
May 8, 2024 AC 3.3 $23.03 @$22.50
Feb. 15, 2024 AC 3.3 $28.52 @$30.00
Nov. 2, 2023 AC 3.0 $34.96 @$35.00

 
 
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