Parallax Volatility Advisers’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 | $3.23M | Buy |
3,212
+3,210
| +160,500% | +$3.13M | 0.01% | 686 |
|
|
2025
Q4 | $1.73K | Sell |
2
-2,089
| -100% | -$1.89M | ﹤0.01% | 1581 |
|
|
2025
Q3 | $1.94M | Sell |
2,091
-1,049
| -33% | -$1.01M | ﹤0.01% | 934 |
|
|
2025
Q2 | $3.11M | Sell |
3,140
-7,523
| -71% | -$7.48M | 0.01% | 753 |
|
|
2025
Q1 | $10.1M | Sell |
10,663
-14,506
| -58% | -$14.1M | 0.03% | 447 |
|
|
2024
Q4 | $23.1M | Buy |
25,169
+19,397
| +336% | +$18M | 0.04% | 317 |
|
|
2024
Q3 | $5.12M | Sell |
5,772
-1,578
| -21% | -$1.37M | 0.01% | 784 |
|
|
2024
Q2 | $6.25M | Buy |
+7,350
| New | +$5.74M | 0.01% | 640 |
|
|
2024
Q1 | – | Sell |
-40,104
| Closed | -$28.6M | – | 1913 |
|
|
2023
Q4 | $26.5M | Buy |
40,104
+21,696
| +118% | +$12.9M | 0.05% | 313 |
|
|
2023
Q3 | $10.4M | Buy |
18,408
+15,750
| +593% | +$8.69M | 0.02% | 522 |
|
|
2023
Q2 | $1.43M | Buy |
2,658
+2,628
| +8,760% | +$1.33M | ﹤0.01% | 1264 |
|
|
2023
Q1 | $14.9K | Sell |
30
-30
| -50% | -$14.7K | ﹤0.01% | 2356 |
|
|
2022
Q4 | $27.4K | Hold |
60
| – | – | ﹤0.01% | 2444 |
|
|
2022
Q3 | $28K | Buy |
+60
| New | +$31.2K | ﹤0.01% | 2695 |
|
|
2022
Q2 | – | Sell |
-35,188
| Closed | -$17.9M | – | 2942 |
|
|
2022
Q1 | $20.3M | Buy |
+35,188
| New | +$18.5M | 0.01% | 500 |
|
|
2020
Q4 | – | Sell |
-255,298
| Closed | -$90.6M | – | 2663 |
|
|
2020
Q3 | $90.6M | Buy |
255,298
+184,171
| +259% | +$61.9M | 0.07% | 248 |
|
|
2020
Q2 | $21.6M | Sell |
71,127
-62,437
| -47% | -$19M | 0.03% | 499 |
|
|
2020
Q1 | $38.1M | Buy |
133,564
+95,524
| +251% | +$29M | 0.05% | 247 |
|
|
2019
Q4 | $11.2M | Buy |
38,040
+30,660
| +415% | +$9.11M | 0.01% | 612 |
|
|
2019
Q3 | $2.13M | Buy |
7,380
+7,307
| +10,010% | +$2.06M | ﹤0.01% | 1114 |
|
|
2019
Q2 | $19K | Sell |
73
-72,651
| -100% | -$18.1M | ﹤0.01% | 2087 |
|
|
2019
Q1 | $17.6M | Sell |
72,724
-159,222
| -69% | -$34.8M | 0.02% | 343 |
|
|
2018
Q4 | $47.3M | Buy |
231,946
+231,900
| +504,130% | +$51.8M | 0.06% | 199 |
|
|
2018
Q3 | $11K | Buy |
+46
| New | +$10.4K | ﹤0.01% | 2224 |
|
|
2018
Q2 | – | Sell |
-89,967
| Closed | -$17.8M | – | 2222 |
|
|
2018
Q1 | $17M | Buy |
89,967
+20,487
| +29% | +$3.87M | 0.02% | 272 |
|
|
2017
Q4 | $12.9M | Buy |
+69,480
| New | +$12M | 0.02% | 339 |
|
|
2017
Q3 | – | Sell |
-93,443
| Closed | -$14.7M | – | 2204 |
|
|
2017
Q2 | $14.9M | Buy |
93,443
+72,997
| +357% | +$12.6M | 0.03% | 316 |
|
|
2017
Q1 | $3.43M | Buy |
+20,446
| New | +$3.43M | 0.01% | 685 |
|
|
2016
Q4 | – | Sell |
-56,677
| Closed | -$8.65M | – | 3142 |
|
|
2016
Q3 | $8.64M | Sell |
56,677
-9,197
| -14% | -$1.49M | 0.02% | 489 |
|
|
2016
Q2 | $10.3M | Buy |
+65,874
| New | +$9.98M | 0.02% | 426 |
|
|
2015
Q3 | – | Sell |
-10,586
| Closed | -$1.51M | – | 2978 |
|
|
2015
Q2 | $1.43M | Buy |
10,586
+9,243
| +688% | +$1.33M | ﹤0.01% | 1208 |
|
|
2015
Q1 | $203K | Sell |
1,343
-49,324
| -97% | -$7.24M | ﹤0.01% | 2068 |
|
|
2014
Q4 | $7.18M | Sell |
50,667
-36,163
| -42% | -$4.92M | 0.02% | 574 |
|
|
2014
Q3 | $10.9M | Buy |
86,830
+79,692
| +1,116% | +$9.63M | 0.03% | 427 |
|
|
2014
Q2 | $822K | Sell |
7,138
-9,692
| -58% | -$1.11M | ﹤0.01% | 1125 |
|
|
2014
Q1 | $1.88M | Sell |
16,830
-9,689
| -37% | -$1.11M | 0.01% | 594 |
|
|
2013
Q4 | $3.16M | Buy |
26,519
+8,250
| +45% | +$986K | 0.02% | 548 |
|
|
2013
Q3 | $2.1M | Sell |
18,269
-44,420
| -71% | -$5.13M | 0.01% | 515 |
|
|
2013
Q2 | $6.93M | Buy |
+62,689
| New | +$6.85M | 0.03% | 346 |
|
Other funds holding COST
VCM
VPM
DAM
Parallax Volatility Advisers's COST Position: Q1 2026 in Review
Parallax Volatility Advisers increased its Costco (COST) stake by 160,500% in Q1 2026, buying an estimated $3.13M and bringing the position to 3,212 shares worth $3.23M. The position accounts for 0.01% of the portfolio, ranked #686.
Parallax Volatility Advisers first reported a position in COST in Q2 2013 and has held it in 39 quarters since. The position peaked at $90.6M in Q3 2020. 4,239 funds tracked by Wall St. Rank hold COST as of Q1 2026.
- Parallax Volatility Advisers held 3,212 shares of Costco worth $3.23M as of Q1 2026.
- Parallax Volatility Advisers bought 3,210 Costco shares in Q1 2026, an estimated $3.13M.
- Costco made up 0.01% of Parallax Volatility Advisers's portfolio in Q1 2026, its #686 holding.
- Parallax Volatility Advisers first reported a position in Costco in Q2 2013 and has held it in 39 quarters since.
- Parallax Volatility Advisers's Costco position peaked at $90.6M in Q3 2020.
- 4,239 funds tracked by Wall St. Rank held Costco as of Q1 2026.
Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.