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YANKCOM Partnership’s Costco COST Stock Holding History

YANKCOM Partnership’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
Q3 		$1.51M Buy
1,661
+55
+3% +$51.3K 0.52% 41
2026
Q2 		$1.5M Buy
1,606
+52
+3% +$51.8K 0.54% 41
2026
Q1 		$1.55M Buy
1,554
+124
+9% +$121K 0.64% 36
2025
Q4 		$1.23M Buy
1,430
+122
+9% +$111K 0.52% 49
2025
Q3 		$1.21M Buy
1,308
+12
+0.9% +$11.5K 0.55% 48
2025
Q2 		$1.28M Sell
1,296
-49
-4% -$48.7K 0.63% 39
2025
Q1 		$1.27M Sell
1,345
-41
-3% -$40K 0.7% 39
2024
Q4 		$1.27M Buy
+1,386
New +$1.29M 0.68% 39

Other funds holding COST

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return
Fisher Asset Management
Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Nuveen
Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Bank of Montreal
Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return

YANKCOM Partnership's COST Position: Q3 2026 in Review

YANKCOM Partnership increased its Costco (COST) stake by 3.4% in Q3 2026, buying an estimated $51.3K and bringing the position to 1,661 shares worth $1.51M. The position accounts for 0.52% of the portfolio, ranked #41.

YANKCOM Partnership first reported a position in COST in Q4 2024 and has held it in 8 quarters since. The position peaked at $1.55M in Q1 2026. 2,986 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • YANKCOM Partnership held 1,661 shares of Costco worth $1.51M as of Q3 2026.
  • YANKCOM Partnership bought 55 Costco shares in Q3 2026, an estimated $51.3K.
  • Costco made up 0.52% of YANKCOM Partnership's portfolio in Q3 2026, its #41 holding.
  • YANKCOM Partnership first reported a position in Costco in Q4 2024 and has held it in 8 quarters since.
  • YANKCOM Partnership's Costco position peaked at $1.55M in Q1 2026.
  • 2,986 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on YANKCOM Partnership's 13F filing for Q3 2026, filed 15 Oct 2026.