Harbour Investments’s ProShares UltraPro Short QQQ SQQQ Stock Holding History

Harbour Investments’s Portfolio SQQQ Stock Details SQQQ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q4	–	Sell	-32	Closed	-$2.44K	–	4009
2025 Q3	$2.44K	Hold	32	–	–	﹤0.01%	3223
2025 Q2	$3.13K	Buy	+32	New	+$4.59K	﹤0.01%	3012
2024 Q2	–	Sell	-2	Closed	-$629	–	3367
2024 Q1	$629	Hold	2	–	–	﹤0.01%	2997
2023 Q4	$807	Sell	2 -4	-67%	-$1.74K	﹤0.01%	2859
2023 Q3	$3.3K	Buy	6 +4	+200%	+$1.88K	﹤0.01%	2412
2023 Q2	$1.14K	Buy	+2	New	+$1.3K	﹤0.01%	2670
2021 Q2	–	Sell	-1	Closed	-$2K	–	3960
2021 Q1	$2K	Buy	+1	New	+$1.73K	﹤0.01%	3269

Other funds holding SQQQ

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Citigroup New York $303B AUM 53.02% 1-Year Est. Return

TAA

TB Alternative Assets Grand Cayman, Cayman Islands $623M AUM 154.99% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return

Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return

IMC Chicago Chicago, Illinois $419B AUM 72.04% 1-Year Est. Return

Jump Financial Chicago, Illinois $12.4B AUM 62.79% 1-Year Est. Return

Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return

Hamilton Wealth Encino, California $546M AUM 31.66% 1-Year Est. Return

Harbour Investments's SQQQ Position: Q4 2025 in Review

Harbour Investments sold out of ProShares UltraPro Short QQQ (SQQQ) in Q4 2025, closing a stake of 32 shares — an estimated $2.44K sold.

Harbour Investments first reported a position in SQQQ in Q1 2021 and held it in 7 quarters. The position peaked at $3.3K in Q3 2023. 79 funds tracked by Wall St. Rank hold SQQQ as of Q4 2025.

Harbour Investments reported no remaining ProShares UltraPro Short QQQ position as of Q4 2025 after selling out during the quarter.
Harbour Investments sold 32 ProShares UltraPro Short QQQ shares in Q4 2025, an estimated $2.44K.
Harbour Investments first reported a position in ProShares UltraPro Short QQQ in Q1 2021 and held it in 7 quarters.
Harbour Investments's ProShares UltraPro Short QQQ position peaked at $3.3K in Q3 2023.
79 funds tracked by Wall St. Rank held ProShares UltraPro Short QQQ as of Q4 2025.

Based on Harbour Investments's 13F filing for Q4 2025, filed 9 Feb 2026.