ACT Advisors
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ACT Advisors’s Costco COST Stock Holding History

ACT Advisors’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 		$220K Buy
241
+13
+6% +$12.1K 0.07% 70
2026
Q2 		$214K Sell
228
-3
-1% -$2.99K 0.07% 68
2026
Q1 		$230K Buy
+231
New +$225K 0.1% 63
2025
Q3 		– Sell
-210
Closed -$208K – 75
2025
Q2 		$208K Buy
+210
New +$209K 0.1% 55

Other funds holding COST

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
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
TD Waterhouse Canada
TD Waterhouse Canada Toronto, Ontario, Canada $38.4B AUM 30.28% 1-Year Est. Return
Cardano Risk Management
Cardano Risk Management Rotterdam, Netherlands $18.2B AUM 38.97% 1-Year Est. Return
Loring Wolcott & Coolidge Fiduciary Advisors
Loring Wolcott & Coolidge Fiduciary Advisors Boston, Massachusetts $10.8B AUM 9.05% 1-Year Est. Return
Ninety One (UK)
Ninety One (UK) London, United Kingdom $45.5B AUM 15.2% 1-Year Est. Return
Sarasin & Partners
Sarasin & Partners London, United Kingdom $8.93B AUM 11.81% 1-Year Est. Return
Congress Asset Management
Congress Asset Management Boston, Massachusetts $15.4B AUM 30.39% 1-Year Est. Return

ACT Advisors's COST Position: Q3 2026 in Review

ACT Advisors increased its Costco (COST) stake by 5.7% in Q3 2026, buying an estimated $12.1K and bringing the position to 241 shares worth $220K. The position accounts for 0.07% of the portfolio, ranked #70.

ACT Advisors first reported a position in COST in Q2 2025 and has held it in 4 quarters since. The position peaked at $230K in Q1 2026. 1,392 funds tracked by Wall St. Rank hold COST as of Q3 2026.

  • ACT Advisors held 241 shares of Costco worth $220K as of Q3 2026.
  • ACT Advisors bought 13 Costco shares in Q3 2026, an estimated $12.1K.
  • Costco made up 0.07% of ACT Advisors's portfolio in Q3 2026, its #70 holding.
  • ACT Advisors first reported a position in Costco in Q2 2025 and has held it in 4 quarters since.
  • ACT Advisors's Costco position peaked at $230K in Q1 2026.
  • 1,392 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on ACT Advisors's 13F filing for Q3 2026, filed 15 Oct 2026.