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
Q2 | $17.8M | Sell |
19,000
-77,600
| -80% | -$77.3M | 0.03% | 286 |
|
|
2026
Q1 | $97.2M | Buy |
96,600
+57,300
| +146% | +$55.8M | 0.25% | 69 |
|
|
2025
Q4 | $33.9M | Buy |
39,300
+2,000
| +5% | +$1.81M | 0.07% | 206 |
|
|
2025
Q3 | $34.5M | Hold |
37,300
| – | – | 0.05% | 191 |
|
|
2025
Q2 | $36.9M | Sell |
37,300
-10,400
| -22% | -$10.3M | 0.08% | 170 |
|
|
2025
Q1 | $45.1M | Sell |
47,700
-28,800
| -38% | -$28.1M | 0.12% | 138 |
|
|
2024
Q4 | $70.1M | Buy |
76,500
+67,100
| +714% | +$62.3M | 0.14% | 118 |
|
|
2024
Q3 | $8.33M | Buy |
9,400
+3,000
| +47% | +$2.6M | 0.02% | 615 |
|
|
2024
Q2 | $5.44M | Sell |
6,400
-9,600
| -60% | -$7.49M | 0.01% | 696 |
|
|
2024
Q1 | $11.7M | Sell |
16,000
-16,600
| -51% | -$11.9M | 0.03% | 472 |
|
|
2023
Q4 | $21.5M | Buy |
32,600
+6,100
| +23% | +$3.62M | 0.04% | 372 |
|
|
2023
Q3 | $15M | Sell |
26,500
-49,100
| -65% | -$27.1M | 0.03% | 410 |
|
|
2023
Q2 | $40.7M | Buy |
75,600
+24,800
| +49% | +$12.5M | 0.09% | 191 |
|
|
2023
Q1 | $25.2M | Sell |
50,800
-44,600
| -47% | -$21.9M | 0.05% | 327 |
|
|
2022
Q4 | $43.6M | Buy |
95,400
+57,900
| +154% | +$28.3M | 0.07% | 307 |
|
|
2022
Q3 | $17.7M | Sell |
37,500
-95,900
| -72% | -$49.9M | 0.03% | 546 |
|
|
2022
Q2 | $63.9M | Buy |
133,400
+64,700
| +94% | +$32.8M | 0.06% | 222 |
|
|
2022
Q1 | $39.6M | Sell |
68,700
-212,700
| -76% | -$112M | 0.02% | 326 |
|
|
2021
Q4 | $160M | Sell |
281,400
-101,400
| -26% | -$51.9M | 0.14% | 106 |
|
|
2021
Q3 | $172M | Buy |
382,800
+79,200
| +26% | +$34.8M | 0.13% | 109 |
|
|
2021
Q2 | $120M | Sell |
303,600
-575,100
| -65% | -$217M | 0.11% | 153 |
|
|
2021
Q1 | $310M | Buy |
878,700
+237,600
| +37% | +$82.7M | 0.27% | 59 |
|
|
2020
Q4 | $242M | Sell |
641,100
-250,000
| -28% | -$93.4M | 0.18% | 92 |
|
|
2020
Q3 | $316M | Buy |
891,100
+317,300
| +55% | +$107M | 0.23% | 67 |
|
|
2020
Q2 | $174M | Sell |
573,800
-35,800
| -6% | -$10.9M | 0.2% | 69 |
|
|
2020
Q1 | $174M | Buy |
609,600
+133,200
| +28% | +$40.4M | 0.22% | 62 |
|
|
2019
Q4 | $140M | Buy |
476,400
+219,100
| +85% | +$65.1M | 0.16% | 88 |
|
|
2019
Q3 | $74.1M | Buy |
257,300
+28,700
| +13% | +$8.08M | 0.08% | 132 |
|
|
2019
Q2 | $60.4M | Sell |
228,600
-38,100
| -14% | -$9.5M | 0.07% | 151 |
|
|
2019
Q1 | $64.6M | Sell |
266,700
-272,000
| -50% | -$59.5M | 0.07% | 128 |
|
|
2018
Q4 | $110M | Buy |
538,700
+27,700
| +5% | +$6.19M | 0.15% | 107 |
|
|
2018
Q3 | $120M | Buy |
511,000
+197,900
| +63% | +$44.6M | 0.15% | 62 |
|
|
2018
Q2 | $65.4M | Sell |
313,100
-365,900
| -54% | -$72.3M | 0.09% | 94 |
|
|
2018
Q1 | $128M | Buy |
679,000
+614,600
| +954% | +$116M | 0.17% | 60 |
|
|
2017
Q4 | $12M | Hold |
64,400
| – | – | 0.02% | 364 |
|
|
2017
Q3 | $10.6M | Sell |
64,400
-150,800
| -70% | -$23.7M | 0.02% | 390 |
|
|
2017
Q2 | $34.4M | Sell |
215,200
-203,300
| -49% | -$35M | 0.07% | 168 |
|
|
2017
Q1 | $70.2M | Sell |
418,500
-136,400
| -25% | -$22.9M | 0.14% | 90 |
|
|
2016
Q4 | $88.8M | Buy |
554,900
+34,000
| +7% | +$5.19M | 0.17% | 86 |
|
|
2016
Q3 | $79.4M | Buy |
520,900
+235,100
| +82% | +$38M | 0.15% | 90 |
|
|
2016
Q2 | $44.9M | Buy |
285,800
+172,900
| +153% | +$26.2M | 0.09% | 151 |
|
|
2016
Q1 | $17.8M | Buy |
112,900
+30,000
| +36% | +$4.55M | 0.04% | 261 |
|
|
2015
Q4 | $13.4M | Buy |
82,900
+37,000
| +81% | +$5.85M | 0.03% | 371 |
|
|
2015
Q3 | $6.64M | Sell |
45,900
-63,900
| -58% | -$9.12M | 0.01% | 596 |
|
|
2015
Q2 | $14.8M | Sell |
109,800
-26,300
| -19% | -$3.78M | 0.03% | 363 |
|
|
2015
Q1 | $20.6M | Sell |
136,100
-527,500
| -79% | -$77.4M | 0.05% | 303 |
|
|
2014
Q4 | $94.1M | Sell |
663,600
-366,600
| -36% | -$49.8M | 0.27% | 71 |
|
|
2014
Q3 | $129M | Buy |
1,030,200
+967,200
| +1,535% | +$117M | 0.41% | 36 |
|
|
2014
Q2 | $7.25M | Buy |
63,000
+23,700
| +60% | +$2.72M | 0.03% | 385 |
|
|
2014
Q1 | $4.39M | Sell |
39,300
-18,700
| -32% | -$2.14M | 0.03% | 415 |
|
|
2013
Q4 | $6.9M | Buy |
58,000
+50,800
| +706% | +$6.07M | 0.03% | 365 |
|
|
2013
Q3 | $830K | Sell |
7,200
-45,800
| -86% | -$5.29M | ﹤0.01% | 715 |
|
|
2013
Q2 | $5.86M | Buy |
+53,000
| New | +$5.79M | 0.03% | 374 |
|
Other funds holding COST
Parallax Volatility Advisers's COST Position: Q2 2026 in Review
Parallax Volatility Advisers increased its Costco (COST) stake by 8.3% in Q2 2026, buying an estimated $266K and bringing the position to 3,479 shares worth $3.25M. The position accounts for 0.01% of the portfolio, ranked #682.
Parallax Volatility Advisers first reported a position in COST in Q2 2013 and has held it in 45 quarters since. The position peaked at $145M in Q4 2021. 4,247 funds tracked by Wall St. Rank hold COST as of Q2 2026.
- Parallax Volatility Advisers held 3,479 shares of Costco worth $3.25M as of Q2 2026.
- Parallax Volatility Advisers bought 267 Costco shares in Q2 2026, an estimated $266K.
- Costco made up 0.01% of Parallax Volatility Advisers's portfolio in Q2 2026, its #682 holding.
- Parallax Volatility Advisers first reported a position in Costco in Q2 2013 and has held it in 45 quarters since.
- Parallax Volatility Advisers's Costco position peaked at $145M in Q4 2021.
- 4,247 funds tracked by Wall St. Rank held Costco as of Q2 2026.
Based on Parallax Volatility Advisers's 13F filing for Q2 2026, filed 14 Aug 2026.