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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 		– Hold
0
– – – 44
2026
Q1 		– Hold
0
– – – 62

Other funds holding COST

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Norges Bank
Norges Bank Oslo, Norway $1T AUM
Fidelity Investments
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.