Harbor Osmosis Emerging Markets Resource Efficient ETF
EFFE
2 hedge funds and large institutions have $119M invested in Harbor Osmosis Emerging Markets Resource Efficient ETF in 2025 Q4 according to their latest regulatory filings, with funds opening new positions, 0 increasing their positions, 1 reducing their positions, and closing their positions.
0% more funds holding
Funds holding: 2 → 2 (0)
0.06% less ownership
Funds ownership: 99.64% → 99.59% (-0.06%)
4% less capital invested
Capital invested by funds: $123M → $119M (-$4.47M)
100% less repeat investments, than reductions
Existing positions increased: 0 | Existing positions reduced: 1
Top Buyers
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$73.3K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
1
State of Wisconsin Investment Board
Madison,
Wisconsin
| $119M | – | – | – |
|
|
2
Jane Street
New York
| $313K | -$73.3K | -3,045 | -18% |
|
EFFE Hedge Fund Activity: Q4 2025 in Review
2 of the 8,227 institutional investors tracked by Wall St. Rank reported a position in Harbor Osmosis Emerging Markets Resource Efficient ETF (EFFE) for Q4 2025, worth a combined $119M — down 3.6% from $123M a quarter earlier.
Fund positioning in EFFE was balanced in Q4 2025: 0 funds opened new positions, 0 closed out, 0 added to existing stakes and 1 trimmed.
The largest seller was Jane Street, cutting an estimated $73.3K.
- 2 institutional investors held Harbor Osmosis Emerging Markets Resource Efficient ETF (EFFE) as of Q4 2025, unchanged from Q3 2025.
- Funds reported $119M of Harbor Osmosis Emerging Markets Resource Efficient ETF stock for Q4 2025, down 3.6% quarter-over-quarter.
- 0 funds opened new Harbor Osmosis Emerging Markets Resource Efficient ETF positions in Q4 2025 and 0 closed out.
- The largest Harbor Osmosis Emerging Markets Resource Efficient ETF seller in Q4 2025 was Jane Street, an estimated $73.3K sold.
Based on aggregated 13F filings for Q4 2025.