Twin Tree Management
COST icon

Twin Tree Management’s Costco COST Stock Holding History

Twin Tree Management’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 		$2.27M Buy
+2,283
New +$2.22M 0.05% 431
2025
Q4 		– Sell
-3,024
Closed -$2.74M – 1457
2025
Q3 		$2.8M Buy
+3,024
New +$2.9M 0.01% 948
2025
Q2 		– Sell
-27,578
Closed -$27.4M – 1660
2025
Q1 		$26.1M Sell
27,578
-39,817
-59% -$38.8M 0.05% 343
2024
Q4 		$61.8M Buy
67,395
+6,752
+11% +$6.27M 0.11% 156
2024
Q3 		$53.8M Buy
60,643
+9,230
+18% +$8.01M 0.11% 152
2024
Q2 		$43.7M Buy
+51,413
New +$40.1M 0.1% 183
2023
Q2 		– Sell
-2,662
Closed -$1.35M – 1282
2023
Q1 		$1.32M Sell
2,662
-121,728
-98% -$59.7M ﹤0.01% 970
2022
Q4 		$56.8M Buy
124,390
+69,995
+129% +$34.2M 0.12% 155
2022
Q3 		$25.7M Sell
54,395
-5,571
-9% -$2.9M 0.05% 317
2022
Q2 		$28.7M Buy
59,966
+36,952
+161% +$18.7M 0.05% 306
2022
Q1 		$13.3M Sell
23,014
-62,602
-73% -$32.9M 0.02% 615
2021
Q4 		$48.6M Sell
85,616
-16,342
-16% -$8.37M 0.1% 169
2021
Q3 		$45.8M Buy
101,958
+31,031
+44% +$13.6M 0.1% 177
2021
Q2 		$28.1M Buy
70,927
+1,824
+3% +$690K 0.08% 259
2021
Q1 		$24.4M Buy
69,103
+51,598
+295% +$18M 0.09% 241
2020
Q4 		$6.6M Buy
+17,505
New +$6.54M 0.03% 544
2020
Q3 		– Sell
-13,582
Closed -$4.56M – 1278
2020
Q2 		$4.12M Sell
13,582
-39,271
-74% -$11.9M 0.02% 706
2020
Q1 		$15.1M Buy
52,853
+35,446
+204% +$10.8M 0.07% 237
2019
Q4 		$5.12M Sell
17,407
-14,634
-46% -$4.35M 0.02% 506
2019
Q3 		$9.23M Buy
32,041
+13,969
+77% +$3.93M 0.04% 348
2019
Q2 		$4.78M Buy
18,072
+12,725
+238% +$3.17M 0.02% 466
2019
Q1 		$1.29M Sell
5,347
-6,268
-54% -$1.37M 0.01% 772
2018
Q4 		$2.37M Sell
11,615
-22,257
-66% -$4.97M 0.01% 681
2018
Q3 		$7.96M Buy
33,872
+20,846
+160% +$4.7M 0.05% 296
2018
Q2 		$2.72M Buy
13,026
+7,015
+117% +$1.39M 0.02% 562
2018
Q1 		$1.13M Buy
+6,011
New +$1.13M 0.01% 641
2017
Q3 		– Sell
-40,158
Closed -$6.31M – 1005
2017
Q2 		$6.42M Buy
+40,158
New +$6.92M 0.05% 327
2017
Q1 		– Sell
-38,757
Closed -$6.21M – 1048
2016
Q4 		$6.21M Buy
38,757
+30,488
+369% +$4.65M 0.06% 339
2016
Q3 		$1.26M Buy
+8,269
New +$1.34M 0.02% 604
2016
Q1 		– Sell
-13,524
Closed -$2.05M – 1269
2015
Q4 		$2.18M Buy
13,524
+12,119
+863% +$1.92M 0.04% 385
2015
Q3 		$203K Buy
+1,405
New +$200K 0.01% 1001
2015
Q2 		– Sell
-10,305
Closed -$1.48M – 1339
2015
Q1 		$1.56M Sell
10,305
-4,843
-32% -$711K 0.04% 463
2014
Q4 		$2.15M Buy
+15,148
New +$2.06M 0.06% 358
2014
Q2 		– Sell
-11,621
Closed -$1.33M – 917
2014
Q1 		$1.3M Buy
11,621
+3,312
+40% +$379K 0.03% 563
2013
Q4 		$989K Sell
8,309
-3,105
-27% -$371K 0.02% 598
2013
Q3 		$1.31M Buy
+11,414
New +$1.32M 0.04% 411

Other funds holding COST

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Bank of America
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
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Twin Tree Management's COST Position: Q1 2026 in Review

Twin Tree Management opened a new position in Costco (COST) in Q1 2026: 2,283 shares worth $2.27M. The stake represents 0.05% of the portfolio and ranks #431 among its holdings. This is a return to the name: Twin Tree Management previously reported a position in COST as recently as Q3 2025.

Twin Tree Management first reported a position in COST in Q3 2013 and has held it in 36 quarters since. The position peaked at $61.8M in Q4 2024. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Twin Tree Management held 2,283 shares of Costco worth $2.27M as of Q1 2026.
  • Costco was a new Twin Tree Management position in Q1 2026.
  • Costco made up 0.05% of Twin Tree Management's portfolio in Q1 2026, its #431 holding.
  • Twin Tree Management first reported a position in Costco in Q3 2013 and has held it in 36 quarters since.
  • Twin Tree Management's Costco position peaked at $61.8M in Q4 2024.
  • 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Twin Tree Management's 13F filing for Q1 2026, filed 14 May 2026.