Ultragenyx Pharmaceutical Inc. (RARE) short interest & options flow
NASDAQRARE heads into the post-earnings stretch carrying one of the highest short positions in its peer group, a wrecked pipeline narrative, and an analyst community that cannot agree on how low is low enough. Short interest at 20.8% of the free float is the dominant feature of the positioning picture. That is up roughly 20% over the past month, a sharp acceleration that began around…
RARE short interest jumps 21.2% over one week to 21.1% of free float, highest level in recent weeks. Borrow costs remain negligible at 0.49%, with availability surging to 1,121% as lenders add shares.
- Market cap
- $1.69B
- Next earnings
- 12 Feb 2027
Key data as of 5 Nov 2026
Latest signals on RARE
- Short Interest
RARE short interest jumps 21.2% over one week to 21.1% of free float, highest level in recent weeks. Borrow costs remain negligible at 0.49%, with availability surging to 1,121% as lenders add shares.
4 Short Interest updates in 30 days
RARE news and analysis
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