Buy call

PRTA

Prothena Corporation plc

Published Jun 18, 2026 · graded over ~2 months

What this call did

Jun 18, 2026 to Aug 17, 2026

This call returned

-0.2%

S&P 500, same dates

+3.3%

Difference

-3.5%

Not counted in the average: this call is repeat call, not counted.

Jun 18, 2026 to Aug 17, 2026 · n=1, listed but not counted · vs S&P 500 · saved before results. Past performance does not predict future results. Market research, not investment advice.

99 insider-buy calls (one per stock) published May 11, 2026 to Jul 17, 2026, each measured from the first market open after it was published, against the S&P 500 over its own 60 days: average +8.2% vs S&P +0.9%. Best +64.8%, worst -47.6%, 22 of 99 lost money. As of Sep 27, 2026.

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