Harbor Osmosis International Resource Efficient ETF (EFFI) Stock Price, News & Analysis
Price Move History
- Daily moves over 5%
- 0 252 sessions, October 23, 2025 to October 23, 2026
- Largest daily move
- -4.1% close of December 19, 2025
- 1-year change
- +11.1% closing prices, October 23, 2025 to October 23, 2026
- 1-month change
- +0.3% closing prices, September 23, 2026 to October 23, 2026
Company Description
EFFI has gained 11.1% over the past year. The last closing price was $26.68.
This page collects what Stock Titan holds for EFFI, including price data, latest news, and short interest trends.
Stock Performance
Harbor Osmosis International Resource Efficient ETF (EFFI) closed at $26.68 on October 23, 2026. Over the past 12 months, the price has gained 11.1%.
EFFI Metrics & Rankings
Price returns through October 23, 2026. Month-to-date and YTD include the first trading day. Ranking links may use different dates.
Latest News
Harbor Osmosis International Resource Efficient ETF has 1 recent news article. Of the recent coverage, 1 article coincided with positive price movement and 0 with negative movement. View all EFFI news →
SEC Filings
Short Interest History
Short interest in Harbor Osmosis International Resource Efficient ETF (EFFI) currently stands at 4.9 thousand shares, down 9.8% from the previous reporting period, representing 0.1% of the shares outstanding. Since October 2025, short interest has increased by 2860.6%.
Days to Cover History
Days to cover for Harbor Osmosis International Resource Efficient ETF (EFFI) currently stands at 23.5 days, down 54% from the previous period. The ratio is the reported short interest divided by the average daily trading volume. Since October 2025, the figure has increased by 597%. Across the settlements charted above, it has ranged from 1.0 to 72.1 days.