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Prothena Corporation plc (PRTA) short interest & options flow

NASDAQ
$8.73+1.99% 1d+4.05% 1w-1.24% 1mClose: 11 Nov 2026
Short interest % of float
High
Live SI on ORTEX →
Cost to borrow
Low and dropping
Live CTB on ORTEX →
Market cap
$448M
Next earnings
18 Feb 2027
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Key data as of 12 Nov 2026

ORTEX chart of Prothena Corporation plc (PRTA) share price and short interest (% of free float), six months to November 11, 2026

PRTA news and analysis

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