Advisor OS’s Costco COST Stock Holding History

Advisor OS’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	–	Sell	-300	Closed	-$140	–	597
2026 Q1	$140	Hold	300	–	–	﹤0.01%	574
2025 Q4	$2.42K	Hold	300	–	–	﹤0.01%	493
2025 Q3	$125	Hold	300	–	–	﹤0.01%	475
2025 Q2	$1.51K	Buy	+300	New	+$298K	﹤0.01%	455

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

Advisor OS's COST Position: Q2 2026 in Review

Advisor OS reduced its Costco (COST) stake by 3% in Q2 2026, selling an estimated $101K and leaving 3,225 shares worth $3.02M. The position accounts for 0.2% of the portfolio, ranked #82.

Advisor OS first reported a position in COST in Q2 2020 and has held it in 16 quarters since. The position peaked at $3.31M in Q1 2026. 4,238 funds tracked by Wall St. Rank hold COST as of Q2 2026.

Advisor OS held 3,225 shares of Costco worth $3.02M as of Q2 2026.
Advisor OS sold 101 Costco shares in Q2 2026, an estimated $101K.
Costco made up 0.2% of Advisor OS's portfolio in Q2 2026, its #82 holding.
Advisor OS first reported a position in Costco in Q2 2020 and has held it in 16 quarters since.
Advisor OS's Costco position peaked at $3.31M in Q1 2026.
4,238 funds tracked by Wall St. Rank held Costco as of Q2 2026.

Based on Advisor OS's 13F filing for Q2 2026, filed 5 Aug 2026.