OPT
Pharmaceuticals, Biotechnology & Life Sciences
Opthea
- Short interest
- 0.01%
- −0.47 pp 30d
- as of 13 July 2026
- Reported shorts
- 70.6K
- Shares on issue
- 1.368B
Opthea (OPT) short interest history
Short interest chart
Toggle series, zoom, and compare · ASIC daily, T+4OPT Short Interest History
- 30-day change
- -0.47pp
- 90-day change
- -1.92pp
- 1-year change
- -3.38pp
- All-time high
- 4.46% (March 2025)
- All-time low
- 0.00% (July 2019)
Is OPT heavily shorted?
Not especially: 0.01% short interest is modest by ASX standards. ASIC requires positions of 0.01% of issued capital or $100,000 (whichever is less) to be reported.
How has OPT's short interest changed recently?
Over the past 30 days Opthea's short interest has been broadly stable, and over 90 days it has fallen 1.92 percentage points. The current level is 0.01% of shares on issue.
What is the highest OPT's short interest has been?
Since 2015, Opthea's short interest peaked at 4.46% in March 2025 and bottomed at 0.00% in July 2019.
Where does this data come from?
All figures are sourced from daily ASIC short position reports, published with a four trading-day (T+4) delay. Shorted aggregates the full history since 2015. See our methodology.