Parabilis Medicines, Inc. (PBLS): Short Interest History
The most recent FINRA short interest report for PBLS (settlement date September 30, 2026) shows 8,261,483 shares sold short , a change of 35.61% from the prior report .
Days to cover: 4.84.
FINRA settlement history
| Settlement date | Short interest | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| Sep 30, 2026 | 8,261,483 | 35.61% | 1,707,144 | 4.84 |
| Sep 15, 2026 | 6,092,212 | 10.41% | 459,707 | 13.25 |
| Aug 31, 2026 | 5,517,704 | 4.96% | 388,564 | 14.20 |
| Aug 14, 2026 | 5,257,000 | 2.72% | 334,084 | 15.74 |
| Jul 31, 2026 | 5,117,574 | 29.42% | 399,225 | 12.82 |
| Jul 15, 2026 | 3,954,390 | 42.77% | 476,686 | 8.30 |
| Jun 30, 2026 | 2,769,824 | 148.08% | 1,067,719 | 2.59 |
| Jun 15, 2026 | 1,116,504 | 100.00% | 838,555 | 1.33 |
Frequently asked questions
What is short interest in PBLS?
Short interest is the total number of PBLS shares currently sold short but not yet covered or closed out. FINRA publishes this data twice monthly.
How is PBLS short interest calculated?
Short interest is aggregated from member firm reports to FINRA. Every U.S. broker-dealer must report aggregate short positions in each security as of the 15th and last trading day of each month.
What does a high short interest mean?
Higher short interest can indicate bearish sentiment, but it also raises the potential for a short squeeze if positive news forces short sellers to cover their positions simultaneously. Compare short interest to float (short percent of float) for context.