BlackDiamond Wealth Management’s Costco COST Stock Holding History

BlackDiamond Wealth Management’s Portfolio COST Stock Details COST Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$2.76M	Sell	2,895 -60	-2%	-$59.8K	1.11%	23
2026 Q1	$2.94M	Buy	2,955 +7	+0.2%	+$6.82K	1.41%	14
2025 Q4	$2.94M	Sell	2,948 -524	-15%	-$475K	1.43%	18
2025 Q3	$3.21M	Sell	3,472 -49	-1%	-$47K	1.75%	15
2025 Q2	$3.47M	Buy	3,521 +106	+3%	+$105K	2%	14
2025 Q1	$3.44M	Sell	3,415 -52	-1%	-$50.7K	2.33%	10
2024 Q4	$3.18M	Sell	3,467 -11	-0.3%	-$10.2K	1.84%	11
2024 Q3	$3.24M	Buy	3,478 +94	+3%	+$81.6K	1.96%	12
2024 Q2	$2.84M	Buy	3,384 +2,884	+577%	+$2.25M	1.87%	13
2024 Q1	$367K	Buy	500 +21	+4%	+$15K	0.26%	88
2023 Q4	$341K	Buy	479 +27	+6%	+$16K	0.25%	88
2023 Q3	$251K	Buy	452 +24	+6%	+$13.2K	0.23%	99
2023 Q2	$242K	Buy	+428	New	+$217K	0.2%	109

Other funds holding COST

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

BlackDiamond Wealth Management's COST Position: Q2 2026 in Review

BlackDiamond Wealth Management reduced its Costco (COST) stake by 2% in Q2 2026, selling an estimated $59.8K and leaving 2,895 shares worth $2.76M. The position accounts for 1.11% of the portfolio, ranked #23.

BlackDiamond Wealth Management first reported a position in COST in Q2 2023 and has held it in 13 quarters since. The position peaked at $3.47M in Q2 2025. 4,238 funds tracked by Wall St. Rank hold COST as of Q2 2026.

BlackDiamond Wealth Management held 2,895 shares of Costco worth $2.76M as of Q2 2026.
BlackDiamond Wealth Management sold 60 Costco shares in Q2 2026, an estimated $59.8K.
Costco made up 1.11% of BlackDiamond Wealth Management's portfolio in Q2 2026, its #23 holding.
BlackDiamond Wealth Management first reported a position in Costco in Q2 2023 and has held it in 13 quarters since.
BlackDiamond Wealth Management's Costco position peaked at $3.47M in Q2 2025.
4,238 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on BlackDiamond Wealth Management's 13F filing for Q2 2026, filed 11 Aug 2026.