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OP Asset Management’s Costco COST Stock Holding History

OP Asset 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 		$94.7M Buy
95,065
+28,905
+44% +$28.2M 0.95% 18
2025
Q4 		$57.1M Buy
66,160
+9,961
+18% +$9.03M 0.68% 22
2025
Q3 		$52M Buy
56,199
+881
+2% +$844K 0.67% 25
2025
Q2 		$54.8M Buy
55,318
+475
+0.9% +$472K 0.79% 20
2025
Q1 		$51.9M Buy
+54,843
New +$53.5M 0.85% 17

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

OP Asset Management's COST Position: Q1 2026 in Review

OP Asset Management increased its Costco (COST) stake by 44% in Q1 2026, buying an estimated $28.2M and bringing the position to 95,065 shares worth $94.7M. The position accounts for 0.95% of the portfolio, ranked #18.

OP Asset Management first reported a position in COST in Q1 2025 and has held it in 5 quarters since. 4,237 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • OP Asset Management held 95,065 shares of Costco worth $94.7M as of Q1 2026.
  • OP Asset Management bought 28,905 Costco shares in Q1 2026, an estimated $28.2M.
  • Costco made up 0.95% of OP Asset Management's portfolio in Q1 2026, its #18 holding.
  • OP Asset Management first reported a position in Costco in Q1 2025 and has held it in 5 quarters since.
  • 4,237 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on OP Asset Management's 13F filing for Q1 2026, filed 9 Apr 2026.