Olympiad Research’s Costco COST Stock Holding History

Olympiad Research’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	$259K	Buy	+285	New	+$266K	0.34%	121
2025 Q3	–	Sell	-403	Closed	-$399K	–	229
2025 Q2	$399K	Buy	403 +177	+78%	+$176K	0.65%	26
2025 Q1	$214K	Buy	+226	New	+$220K	0.25%	175
2022 Q3	$1.41M	Sell	2,994 -80	-3%	-$41.6K	0.76%	39
2022 Q2	$1.47M	Buy	3,074 +334	+12%	+$169K	0.66%	48
2022 Q1	$1.58M	Sell	2,740 -90	-3%	-$47.2K	0.48%	60
2021 Q4	$1.61M	Buy	2,830 +970	+52%	+$497K	0.58%	55
2021 Q3	$836K	Buy	1,860 +3	+0.2%	+$1.32K	0.26%	117
2021 Q2	$735K	Buy	1,857 +73	+4%	+$27.6K	0.26%	110
2021 Q1	$629K	Sell	1,784 -135	-7%	-$47K	0.27%	94
2020 Q4	$723K	Buy	1,919 +1,126	+142%	+$421K	0.42%	47
2020 Q3	$282K	Buy	793 +96	+14%	+$32.3K	0.14%	178
2020 Q2	$211K	Buy	+697	New	+$212K	0.15%	202

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

Olympiad Research's COST Position: Q3 2026 in Review

Olympiad Research opened a new position in Costco (COST) in Q3 2026: 285 shares worth $259K. The stake represents 0.34% of the portfolio and ranks #121 among its holdings. This is a return to the name: Olympiad Research previously reported a position in COST as recently as Q2 2025.

Olympiad Research first reported a position in COST in Q2 2020 and has held it in 13 quarters since. The position peaked at $1.61M in Q4 2021. 2,986 funds tracked by Wall St. Rank hold COST as of Q3 2026.

Olympiad Research held 285 shares of Costco worth $259K as of Q3 2026.
Costco was a new Olympiad Research position in Q3 2026.
Costco made up 0.34% of Olympiad Research's portfolio in Q3 2026, its #121 holding.
Olympiad Research first reported a position in Costco in Q2 2020 and has held it in 13 quarters since.
Olympiad Research's Costco position peaked at $1.61M in Q4 2021.
2,986 funds tracked by Wall St. Rank held Costco as of Q3 2026.

Based on Olympiad Research's 13F filing for Q3 2026, filed 4 Nov 2026.