About Protagonist Therapeutics, Inc. (PTGX) data
Data as of September 30, 2026.
Protagonist Therapeutics, Inc. (PTGX) has 9.35M shares sold short as of the latest FINRA settlement report on September 30, 2026. Short interest has increased by 14.81% compared with the prior settlement. At the current average daily volume, covering all open short positions would take about 11.49 days (days to cover).
Frequently asked questions
What is the current short interest in PTGX?
As of the latest FINRA settlement dated September 30, 2026, PTGX had approximately 9,345,382 shares sold short. Short interest data is reported by FINRA twice per month.
How much does it cost to short PTGX?
The latest borrow fee (cost to borrow) for PTGX is 0.41% per year, based on IBKR data. Fees can change throughout the trading day as shares are borrowed and returned.
What is the days to cover ratio for PTGX?
Days to cover for PTGX is approximately 11.49 days. This estimates how many trading days it would take short sellers to buy back all outstanding short shares at the current average daily volume.
Is PTGX a short squeeze candidate?
A squeeze needs shorts that are hard to close. PTGX trades about 813,300 shares a day and would take roughly 11.49 days to unwind current short positions, at a current borrow fee of 0.41%. Higher days-to-cover and a rising borrow fee together are the setup to watch; neither alone is enough.