Parallax Volatility Advisers’s Western Digital WDC Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $27K | Sell |
100
-37,100
| -100% | -$9.68M | ﹤0.01% | 1316 |
|
|
2025
Q4 | $6.41M | Sell |
37,200
-115,500
| -76% | -$17.5M | 0.01% | 602 |
|
|
2025
Q3 | $18.3M | Sell |
152,700
-16,900
| -10% | -$1.38M | 0.03% | 306 |
|
|
2025
Q2 | $10.9M | Buy |
169,600
+49,100
| +41% | +$2.34M | 0.02% | 405 |
|
|
2025
Q1 | $4.87M | Buy |
120,500
+119,838
| +18,102% | +$5.68M | 0.01% | 624 |
|
|
2024
Q4 | $29.8K | Sell |
662
-44,585
| -99% | -$2.24M | ﹤0.01% | 1819 |
|
|
2024
Q3 | $2.34M | Sell |
45,247
-54,772
| -55% | -$2.77M | ﹤0.01% | 1074 |
|
|
2024
Q2 | $5.73M | Buy |
100,019
+14,024
| +16% | +$778K | 0.01% | 675 |
|
|
2024
Q1 | $4.44M | Sell |
85,995
-16,934
| -16% | -$742K | 0.01% | 773 |
|
|
2023
Q4 | $4.07M | Sell |
102,929
-22,888
| -18% | -$801K | 0.01% | 903 |
|
|
2023
Q3 | $4.34M | Buy |
125,817
+37,837
| +43% | +$1.19M | 0.01% | 812 |
|
|
2023
Q2 | $2.52M | Sell |
87,980
-338,026
| -79% | -$9.4M | 0.01% | 1047 |
|
|
2023
Q1 | $12.1M | Buy |
426,006
+75,411
| +22% | +$2.21M | 0.02% | 521 |
|
|
2022
Q4 | $8.36M | Sell |
350,595
-243,564
| -41% | -$6.43M | 0.01% | 838 |
|
|
2022
Q3 | $14.6M | Buy |
594,159
+105,972
| +22% | +$3.52M | 0.02% | 637 |
|
|
2022
Q2 | $16.5M | Sell |
488,187
-664,411
| -58% | -$26.7M | 0.02% | 542 |
|
|
2022
Q1 | $43.3M | Sell |
1,152,598
-410,130
| -26% | -$16.8M | 0.02% | 304 |
|
|
2021
Q4 | $77M | Sell |
1,562,728
-272,273
| -15% | -$11.8M | 0.09% | 162 |
|
|
2021
Q3 | $78.3M | Buy |
1,835,001
+1,083,537
| +144% | +$51.5M | 0.08% | 180 |
|
|
2021
Q2 | $40.4M | Buy |
751,464
+276,639
| +58% | +$15M | 0.06% | 225 |
|
|
2021
Q1 | $24M | Sell |
474,825
-841,295
| -64% | -$39.3M | 0.05% | 244 |
|
|
2020
Q4 | $55.1M | Sell |
1,316,120
-1,887,657
| -59% | -$62.7M | 0.06% | 282 |
|
|
2020
Q3 | $88.5M | Buy |
3,203,777
+2,324,511
| +264% | +$69.1M | 0.07% | 254 |
|
|
2020
Q2 | $29.3M | Sell |
879,266
-134,549
| -13% | -$4.36M | 0.03% | 401 |
|
|
2020
Q1 | $31.9M | Sell |
1,013,815
-74,220
| -7% | -$3.29M | 0.04% | 287 |
|
|
2019
Q4 | $52.2M | Sell |
1,088,035
-378,643
| -26% | -$15.8M | 0.06% | 208 |
|
|
2019
Q3 | $66.1M | Sell |
1,466,678
-613,872
| -30% | -$26.2M | 0.07% | 148 |
|
|
2019
Q2 | $74.8M | Buy |
2,080,550
+240,918
| +13% | +$8.26M | 0.08% | 131 |
|
|
2019
Q1 | $66.8M | Buy |
1,839,632
+1,312,284
| +249% | +$44.9M | 0.08% | 120 |
|
|
2018
Q4 | $14.7M | Buy |
527,348
+209,960
| +66% | +$7.44M | 0.02% | 420 |
|
|
2018
Q3 | $14M | Buy |
317,388
+101,077
| +47% | +$5.12M | 0.02% | 381 |
|
|
2018
Q2 | $12.7M | Sell |
216,311
-294,367
| -58% | -$18.7M | 0.02% | 373 |
|
|
2018
Q1 | $35.6M | Buy |
510,678
+295,955
| +138% | +$19.9M | 0.05% | 162 |
|
|
2017
Q4 | $12.9M | Sell |
214,723
-127,273
| -37% | -$8.19M | 0.02% | 340 |
|
|
2017
Q3 | $22.3M | Buy |
341,996
+305,084
| +827% | +$20.2M | 0.04% | 241 |
|
|
2017
Q2 | $2.47M | Sell |
36,912
-26,724
| -42% | -$1.78M | ﹤0.01% | 770 |
|
|
2017
Q1 | $3.97M | Buy |
63,636
+35,588
| +127% | +$2.04M | 0.01% | 645 |
|
|
2016
Q4 | $1.44M | Sell |
28,048
-56,756
| -67% | -$2.62M | ﹤0.01% | 1089 |
|
|
2016
Q3 | $3.75M | Buy |
84,804
+3,439
| +4% | +$130K | 0.01% | 786 |
|
|
2016
Q2 | $2.91M | Buy |
81,365
+40,484
| +99% | +$1.33M | 0.01% | 802 |
|
|
2016
Q1 | $1.46M | Buy |
40,881
+7,806
| +24% | +$279K | ﹤0.01% | 1036 |
|
|
2015
Q4 | $1.5M | Sell |
33,075
-58,741
| -64% | -$3M | ﹤0.01% | 1107 |
|
|
2015
Q3 | $5.52M | Sell |
91,816
-250,180
| -73% | -$15M | 0.01% | 650 |
|
|
2015
Q2 | $20.3M | Sell |
341,996
-164,448
| -32% | -$11.8M | 0.04% | 286 |
|
|
2015
Q1 | $34.8M | Buy |
506,444
+288,678
| +133% | +$22.6M | 0.08% | 191 |
|
|
2014
Q4 | $18.2M | Buy |
217,766
+9,129
| +4% | +$689K | 0.05% | 314 |
|
|
2014
Q3 | $15.3M | Buy |
208,637
+184,691
| +771% | +$13.9M | 0.05% | 330 |
|
|
2014
Q2 | $1.67M | Buy |
23,946
+11,774
| +97% | +$789K | 0.01% | 847 |
|
|
2014
Q1 | $846K | Buy |
12,172
+5,160
| +74% | +$337K | 0.01% | 822 |
|
|
2013
Q4 | $445K | Buy |
7,012
+4,101
| +141% | +$229K | ﹤0.01% | 1096 |
|
|
2013
Q3 | $139K | Sell |
2,911
-30,164
| -91% | -$1.49M | ﹤0.01% | 1278 |
|
|
2013
Q2 | $1.55M | Buy |
+33,075
| New | +$1.45M | 0.01% | 631 |
|
Other funds holding WDC
VCM
VPM
Parallax Volatility Advisers's WDC Position: Q1 2026 in Review
Parallax Volatility Advisers reduced its Western Digital (WDC) stake by 30% in Q1 2026, selling an estimated $7.51M and leaving 68,462 shares worth $18.5M. The position accounts for 0.05% of the portfolio, ranked #263.
Parallax Volatility Advisers first reported a position in WDC in Q2 2013 and has held it in 44 quarters since. The position peaked at $34.5M in Q3 2021. 1,406 funds tracked by Wall St. Rank hold WDC as of Q1 2026.
- Parallax Volatility Advisers held 68,462 shares of Western Digital worth $18.5M as of Q1 2026.
- Parallax Volatility Advisers sold 28,755 Western Digital shares in Q1 2026, an estimated $7.51M.
- Western Digital made up 0.05% of Parallax Volatility Advisers's portfolio in Q1 2026, its #263 holding.
- Parallax Volatility Advisers first reported a position in Western Digital in Q2 2013 and has held it in 44 quarters since.
- Parallax Volatility Advisers's Western Digital position peaked at $34.5M in Q3 2021.
- 1,406 funds tracked by Wall St. Rank held Western Digital as of Q1 2026.
Based on Parallax Volatility Advisers's 13F filing for Q1 2026, filed 15 May 2026.