Interval Partners’s Costco COST Stock Holding History

Interval Partners’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 Q1	$2.71M	Buy	+2,718	New	+$2.65M	0.07%	185
2022 Q2	–	Sell	-3,480	Closed	-$2M	–	281
2022 Q1	$2M	Buy	+3,480	New	+$1.83M	0.1%	202
2021 Q1	–	Sell	-4,000	Closed	-$1.51M	–	266
2020 Q4	$1.51M	Sell	4,000 -39,100	-91%	-$14.6M	0.06%	183
2020 Q3	$15.3M	Buy	43,100 +26,146	+154%	+$8.79M	0.86%	32
2020 Q2	$5.14M	Buy	+16,954	New	+$5.16M	0.32%	77
2020 Q1	–	Sell	-57,750	Closed	-$17M	–	202
2019 Q4	$17M	Buy	+57,750	New	+$17.2M	0.61%	56
2017 Q2	–	Sell	-10,000	Closed	-$1.72M	–	206
2017 Q1	$1.68M	Buy	+10,000	New	+$1.68M	0.08%	162

Other funds holding COST

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return

DAM

Diamant Asset Management Ridgefield, Connecticut $147M AUM 25.76% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Interval Partners's COST Position: Q1 2026 in Review

Interval Partners opened a new position in Costco (COST) in Q1 2026: 2,718 shares worth $2.71M. The stake represents 0.07% of the portfolio and ranks #185 among its holdings. This is a return to the name: Interval Partners previously reported a position in COST as recently as Q1 2022.

Interval Partners first reported a position in COST in Q1 2017 and has held it in 7 quarters since. The position peaked at $17M in Q4 2019. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

Interval Partners held 2,718 shares of Costco worth $2.71M as of Q1 2026.
Costco was a new Interval Partners position in Q1 2026.
Costco made up 0.07% of Interval Partners's portfolio in Q1 2026, its #185 holding.
Interval Partners first reported a position in Costco in Q1 2017 and has held it in 7 quarters since.
Interval Partners's Costco position peaked at $17M in Q4 2019.
4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Interval Partners's 13F filing for Q1 2026, filed 15 May 2026.