Alpha Zero’s Costco COST Stock Holding History

Alpha Zero’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	$976K	Buy	1,072 +348	+48%	+$325K	0.32%	40
2026 Q2	$685K	Buy	724 +181	+33%	+$180K	0.26%	49
2026 Q1	$541K	Sell	543 -12	-2%	-$11.7K	0.27%	46
2025 Q4	$479K	Sell	555 -23	-4%	-$20.8K	0.26%	43
2025 Q3	$535K	Buy	578 +22	+4%	+$21.1K	0.31%	37
2025 Q2	$550K	Buy	556 +26	+5%	+$25.8K	0.36%	35
2025 Q1	$501K	Buy	530 +1	+0.2%	+$975	0.38%	34
2024 Q4	$485K	Buy	+529	New	+$491K	0.36%	38

Other funds holding COST

Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.32T AUM 44.66% 1-Year Est. Return

Fisher Asset Management Camas, Washington $348B AUM 26.9% 1-Year Est. Return

Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return

Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return

Nuveen Charlotte, North Carolina $420B AUM 34.97% 1-Year Est. Return

UBS Group Zurich, Switzerland $765B AUM 28.39% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return

Bank of Montreal Toronto, Ontario, Canada $313B AUM 26.62% 1-Year Est. Return

Alpha Zero's COST Position: Q3 2026 in Review

Alpha Zero increased its Costco (COST) stake by 48% in Q3 2026, buying an estimated $325K and bringing the position to 1,072 shares worth $976K. The position accounts for 0.32% of the portfolio, ranked #40.

Alpha Zero first reported a position in COST in Q4 2024 and has held it in 8 quarters since. 2,986 funds tracked by Wall St. Rank hold COST as of Q3 2026.

Alpha Zero held 1,072 shares of Costco worth $976K as of Q3 2026.
Alpha Zero bought 348 Costco shares in Q3 2026, an estimated $325K.
Costco made up 0.32% of Alpha Zero's portfolio in Q3 2026, its #40 holding.
Alpha Zero first reported a position in Costco in Q4 2024 and has held it in 8 quarters since.
2,986 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Alpha Zero's 13F filing for Q3 2026, filed 6 Nov 2026.