What percent of RARE is sold short?

49.4% of Ultragenyx (RARE) trading volume was short last week. Track days-to-cover and borrow rate against insider and hedge fund flow.

Is RARE a short squeeze candidate?

Compare short volume, days-to-cover, and borrow rate to insider buying — when insiders accumulate against heavy short interest, the squeeze setup gets stronger.

How is short volume different from short interest?

Short volume is daily shorting activity reported by FINRA; short interest is the bi-monthly snapshot of outstanding short positions. We track both for Ultragenyx (RARE).

RARE Short Volume Hit 49.4%

$15.22

+0.47 (+3.19%)

Weekly Expected Move ±9.7%

$12 $14 $15 $17 $18

NASDAQ · Healthcare · Biotechnology · Tech Score Sell · Power 39 · $1.5B mcap · 95M float · 3.64% daily turnover · Short 48% of daily vol

Short Volume Summary

2026-10-01

59.3%

Short Ratio

of total volume

44.6%

20-Day Avg

45.4%

50-Day Avg

▲ Rising

5-Day Trend

0.8M

Short Volume

1.3M

Total Volume

Daily Short Volume Ratio

Short Volume vs Total Volume

Exchange Breakdown

2026-10-01

Exchange	Short Volume	Total Volume	Short %
NASDAQ	663,971	1,163,797	57.1%
NYSE	84,388	99,492	84.8%
BATS	5,398	8,865	60.9%

RARE Short Interest

Short Volume Summary

Daily Short Volume Ratio

Short Volume vs Total Volume

Exchange Breakdown

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