Opinicus Capital
COST icon

Opinicus Capital’s Costco COST Stock Holding History

Opinicus Capital’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 		$1.88M Buy
2,064
+3
+0.1% +$2.8K 1.01% 29
2026
Q2 		$1.93M Buy
2,061
+7
+0.3% +$6.98K 1.03% 30
2026
Q1 		$2.05M Buy
2,054
+71
+4% +$69.2K 1.44% 21
2025
Q4 		$1.71M Buy
1,983
+11
+0.6% +$10K 1.19% 27
2025
Q3 		$1.83M Buy
1,972
+160
+9% +$153K 1.26% 20
2025
Q2 		$1.79M Buy
1,812
+26
+1% +$25.8K 1.36% 21
2025
Q1 		$1.69M Sell
1,786
-50
-3% -$48.7K 1.49% 17
2024
Q4 		$1.68M Sell
1,836
-62
-3% -$57.5K 1.41% 16
2024
Q3 		$1.68M Buy
1,898
+28
+1% +$24.3K 1.34% 21
2024
Q2 		$1.59M Buy
1,870
+55
+3% +$42.9K 1.34% 19
2024
Q1 		$1.33M Buy
1,815
+31
+2% +$22.1K 1.18% 26
2023
Q4 		$1.18M Buy
+1,784
New +$1.06M 1.2% 23

Other funds holding COST

Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return
Everett Harris & Co
Everett Harris & Co Los Angeles, California $8.46B AUM 13.48% 1-Year Est. Return
Swedbank
Swedbank Stockholm, Sweden $118B AUM 40.52% 1-Year Est. Return
Emerald Advisors
Emerald Advisors Bellevue, Washington $781M AUM 4.78% 1-Year Est. Return
Parnassus Investments
Parnassus Investments San Francisco, California $33.8B AUM 31.08% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $103B AUM 40.17% 1-Year Est. Return
ProShare Advisors
ProShare Advisors Bethesda, Maryland $69.5B AUM 31.38% 1-Year Est. Return
Bank Julius Baer & Co
Bank Julius Baer & Co Zurich, Switzerland $39.3B AUM 31.81% 1-Year Est. Return
Provident Trust Company
Provident Trust Company Waukesha, Wisconsin $3.22B AUM 13.63% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $52.9B AUM 36.03% 1-Year Est. Return

Opinicus Capital's COST Position: Q3 2026 in Review

Opinicus Capital increased its Costco (COST) stake by 0.15% in Q3 2026, buying an estimated $2.8K and bringing the position to 2,064 shares worth $1.88M. The position accounts for 1.01% of the portfolio, ranked #29.

Opinicus Capital first reported a position in COST in Q4 2023 and has held it in 12 quarters since. The position peaked at $2.05M in Q1 2026. 1,940 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • Opinicus Capital held 2,064 shares of Costco worth $1.88M as of Q3 2026.
  • Opinicus Capital bought 3 Costco shares in Q3 2026, an estimated $2.8K.
  • Costco made up 1.01% of Opinicus Capital's portfolio in Q3 2026, its #29 holding.
  • Opinicus Capital first reported a position in Costco in Q4 2023 and has held it in 12 quarters since.
  • Opinicus Capital's Costco position peaked at $2.05M in Q1 2026.
  • 1,940 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Opinicus Capital's 13F filing for Q3 2026, filed 28 Oct 2026.