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AR

Arcturus Therapeutics Holdings Inc. (ARCT) short interest & options flow

NASDAQ

Short sellers have built a deeply entrenched position in ARCT ahead of its Q1 2026 results tonight — and the borrow market tells a quietly unusual story for a stock trading at $8.90. Short interest runs at 21.6% of the free float, one of the most heavily shorted readings in the biotech universe. The ORTEX short score has climbed to 81.9, ranking in just the 2nd percentile across…

$10.35+10.58% 1d-6.17% 1w-20.38% 1mClose: 6 Nov 2026
Short interest % of float
High
Live SI on ORTEX →
Cost to borrow
Low
Live CTB on ORTEX →
Market cap
$294M
Next earnings
10 Nov 2026
See the full picture on ORTEX →Live short interest, options flow, signals, 13F filings, and more.

Key data as of 8 Nov 2026

ORTEX chart of Arcturus Therapeutics Holdings Inc. (ARCT) share price and short interest (% of free float), six months to November 6, 2026

ARCT news and analysis

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