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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
Q1 		– Hold
0
– – – 62

Other funds holding COST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
DAM
Diamant Asset Management Ridgefield, Connecticut $137B AUM 18.02% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BlackDiamond Wealth Management's COST Position: Q1 2026 in Review

BlackDiamond Wealth Management increased its Costco (COST) stake by 0.24% in Q1 2026, buying an estimated $6.82K and bringing the position to 2,955 shares worth $2.94M. The position accounts for 1.41% of the portfolio, ranked #14.

BlackDiamond Wealth Management first reported a position in COST in Q2 2023 and has held it in 12 quarters since. The position peaked at $3.47M in Q2 2025. 4,237 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • BlackDiamond Wealth Management held 2,955 shares of Costco worth $2.94M as of Q1 2026.
  • BlackDiamond Wealth Management bought 7 Costco shares in Q1 2026, an estimated $6.82K.
  • Costco made up 1.41% of BlackDiamond Wealth Management's portfolio in Q1 2026, its #14 holding.
  • BlackDiamond Wealth Management first reported a position in Costco in Q2 2023 and has held it in 12 quarters since.
  • BlackDiamond Wealth Management's Costco position peaked at $3.47M in Q2 2025.
  • 4,237 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on BlackDiamond Wealth Management's 13F filing for Q1 2026, filed 12 May 2026.