State of Wisconsin Investment Board’s Harbor Osmosis International Resource Efficient ETF EFFI Stock Holding History

State of Wisconsin Investment Board’s Portfolio EFFI Stock Details EFFI Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$130M	Hold	5,500,000	–	–	0.3%	53
2025 Q4	$133M	Hold	5,500,000	–	–	0.3%	48
2025 Q3	$130M	Hold	5,500,000	–	–	0.3%	47
2025 Q2	$126M	Hold	5,500,000	–	–	0.31%	46
2025 Q1	$111M	Buy	5,500,000 +2,900,000	+112%	+$58.1M	0.29%	53
2024 Q4	$49.2M	Buy	+2,600,000	New	+$49.7M	0.13%	135

Other funds holding EFFI

GWP

Gateway Wealth Partners Appleton, Wisconsin $1.67B AUM 21.55% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

IAIM

International Assets Investment Management Orlando, Florida $1.67B AUM 28.26% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

State of Wisconsin Investment Board's EFFI Position: Q1 2026 in Review

State of Wisconsin Investment Board held its Harbor Osmosis International Resource Efficient ETF (EFFI) position steady in Q1 2026 at 5,500,000 shares worth $130M. The position accounts for 0.3% of the portfolio, ranked #53.

State of Wisconsin Investment Board first reported a position in EFFI in Q4 2024 and has held it in 6 quarters since. The position peaked at $133M in Q4 2025. 6 funds tracked by Wall St. Rank hold EFFI as of Q1 2026.

State of Wisconsin Investment Board held 5,500,000 shares of Harbor Osmosis International Resource Efficient ETF worth $130M as of Q1 2026.
State of Wisconsin Investment Board left its Harbor Osmosis International Resource Efficient ETF share count unchanged in Q1 2026.
Harbor Osmosis International Resource Efficient ETF made up 0.3% of State of Wisconsin Investment Board's portfolio in Q1 2026, its #53 holding.
State of Wisconsin Investment Board first reported a position in Harbor Osmosis International Resource Efficient ETF in Q4 2024 and has held it in 6 quarters since.
State of Wisconsin Investment Board's Harbor Osmosis International Resource Efficient ETF position peaked at $133M in Q4 2025.
6 funds tracked by Wall St. Rank held Harbor Osmosis International Resource Efficient ETF as of Q1 2026.

Based on State of Wisconsin Investment Board's 13F filing for Q1 2026, filed 15 May 2026.