Walleye Trading’s Costco COST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$152M Sell
152,100
-82,800
-35% -$80.7M 0.25% 76
2025
Q4
$203M Buy
234,900
+89,400
+61% +$81M 0.29% 60
2025
Q3
$135M Sell
145,500
-49,300
-25% -$47.3M 0.2% 86
2025
Q2
$193M Buy
194,800
+71,600
+58% +$71.2M 0.35% 44
2025
Q1
$117M Buy
123,200
+4,700
+4% +$4.58M 0.27% 58
2024
Q4
$109M Buy
118,500
+46,300
+64% +$43M 0.23% 69
2024
Q3
$64M Buy
72,200
+16,200
+29% +$14.1M 0.13% 133
2024
Q2
$47.6M Sell
56,000
-26,800
-32% -$20.9M 0.11% 167
2024
Q1
$60.7M Sell
82,800
-17,100
-17% -$12.2M 0.13% 136
2023
Q4
$65.9M Buy
99,900
+7,000
+8% +$4.15M 0.14% 118
2023
Q3
$52.5M Buy
92,900
+2,100
+2% +$1.16M 0.14% 115
2023
Q2
$48.9M Buy
90,800
+400
+0.4% +$202K 0.15% 112
2023
Q1
$44.9M Sell
90,400
-31,500
-26% -$15.4M 0.1% 165
2022
Q4
$55.6M Buy
121,900
+27,300
+29% +$13.3M 0.16% 110
2022
Q3
$44.7M Sell
94,600
-2,400
-2% -$1.25M 0.14% 123
2022
Q2
$46.5M Buy
97,000
+40,600
+72% +$20.6M 0.15% 91
2022
Q1
$32.5M Buy
56,400
+13,900
+33% +$7.29M 0.1% 196
2021
Q4
$24.1M Buy
42,500
+9,200
+28% +$4.71M 0.08% 251
2021
Q3
$15M Buy
33,300
+18,600
+127% +$8.18M 0.05% 375
2021
Q2
$5.82M Buy
14,700
+9,500
+183% +$3.59M 0.02% 710
2021
Q1
$1.83M Sell
5,200
-30,300
-85% -$10.5M 0.01% 1397
2020
Q4
$13.4M Buy
35,500
+18,900
+114% +$7.06M 0.06% 292
2020
Q3
$5.89M Sell
16,600
-54,600
-77% -$18.3M 0.03% 488
2020
Q2
$21.6M Buy
71,200
+54,400
+324% +$16.6M 0.14% 107
2020
Q1
$4.79M Sell
16,800
-28,200
-63% -$8.56M 0.04% 396
2019
Q4
$13.2M Buy
45,000
+25,400
+130% +$7.55M 0.09% 210
2019
Q3
$5.65M Sell
19,600
-15,300
-44% -$4.31M 0.05% 409
2019
Q2
$9.22M Sell
34,900
-39,600
-53% -$9.87M 0.08% 219
2019
Q1
$18M Buy
74,500
+22,100
+42% +$4.83M 0.14% 109
2018
Q4
$10.7M Buy
52,400
+14,900
+40% +$3.33M 0.08% 216
2018
Q3
$8.81M Sell
37,500
-43,900
-54% -$9.89M 0.05% 383
2018
Q2
$17M Buy
81,400
+19,500
+32% +$3.85M 0.09% 162
2018
Q1
$11.7M Buy
61,900
+22,700
+58% +$4.28M 0.07% 218
2017
Q4
$7.29K Sell
39,200
-37,600
-49% -$6.49M 0.04% 474
2017
Q3
$12.6K Buy
76,800
+48,400
+170% +$7.6M 0.06% 233
2017
Q2
$4.54K Sell
28,400
-29,700
-51% -$5.12M 0.03% 631
2017
Q1
$9.74K Buy
58,100
+43,200
+290% +$7.24M 0.07% 224
2016
Q4
$2.38M Sell
14,900
-3,600
-19% -$550K 0.02% 849
2016
Q3
$2.83M Sell
18,500
-49,600
-73% -$8.02M 0.02% 728
2016
Q2
$10.7M Sell
68,100
-6,800
-9% -$1.03M 0.07% 186
2016
Q1
$11.8M Buy
74,900
+60,600
+424% +$9.19M 0.1% 165
2015
Q4
$2.31M Buy
14,300
+5,500
+63% +$869K 0.02% 685
2015
Q3
$1.27M Sell
8,800
-6,600
-43% -$942K 0.01% 904
2015
Q2
$2.08M Buy
15,400
+2,100
+16% +$302K 0.02% 678
2015
Q1
$2.01M Sell
13,300
-10,400
-44% -$1.53M 0.02% 635
2014
Q4
$3.36M Buy
23,700
+5,500
+30% +$748K 0.03% 441
2014
Q3
$2.28M Sell
18,200
-15,400
-46% -$1.86M 0.03% 383
2014
Q2
$3.87K Sell
33,600
-7,900
-19% -$906K 0.05% 190
2014
Q1
$4.63K Buy
41,500
+21,100
+103% +$2.41M 0.07% 174
2013
Q4
$2.43M Buy
20,400
+5,200
+34% +$622K 0.02% 578
2013
Q3
$1.75M Sell
15,200
-1,900
-11% -$219K 0.02% 602
2013
Q2
$1.89M Buy
+17,100
New +$1.87M 0.02% 602

Other funds holding COST

Walleye Trading's COST Position: Q1 2026 in Review

Walleye Trading reduced its Costco (COST) stake by 79% in Q1 2026, selling an estimated $48.1M and leaving 12,866 shares worth $12.8M. The position accounts for 0.02% of the portfolio, ranked #676.

Walleye Trading first reported a position in COST in Q3 2013 and has held it in 33 quarters since. The position peaked at $53.7M in Q4 2025. 4,236 funds tracked by Wall St. Rank hold COST as of Q1 2026.

  • Walleye Trading held 12,866 shares of Costco worth $12.8M as of Q1 2026.
  • Walleye Trading sold 49,351 Costco shares in Q1 2026, an estimated $48.1M.
  • Costco made up 0.02% of Walleye Trading's portfolio in Q1 2026, its #676 holding.
  • Walleye Trading first reported a position in Costco in Q3 2013 and has held it in 33 quarters since.
  • Walleye Trading's Costco position peaked at $53.7M in Q4 2025.
  • 4,236 funds tracked by Wall St. Rank held Costco as of Q1 2026.

Based on Walleye Trading's 13F filing for Q1 2026, filed 11 May 2026.