Parallax Volatility Advisers
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Parallax Volatility Advisers’s Western Digital WDC Stock Holding History

Quarter Market Value Status Shares Shares
Change %
Trade Value Portfolio Weight Portfolio Position
2025
Q2
$5.44M Sell
85,002
-6,778
-7% -$434K 0.01% 105
2025
Q1
$3.71M Buy
91,780
+31,930
+53% +$1.29M 0.01% 159
2024
Q4
$3.57M Sell
59,850
-4,701
-7% -$280K 0.01% 216
2024
Q3
$4.41M Sell
64,551
-39,206
-38% -$2.68M 0.01% 165
2024
Q2
$7.86M Buy
103,757
+16,890
+19% +$1.28M 0.02% 106
2024
Q1
$5.93M Buy
+86,867
New +$5.93M 0.01% 121
2023
Q4
Hold
0
1122
2023
Q3
Hold
0
1156
2023
Q2
Sell
-107,173
Closed -$4.04M 1235
2023
Q1
$4.04M Buy
+107,173
New +$4.04M 0.01% 152
2022
Q4
Hold
0
1435
2022
Q3
Sell
-139,814
Closed -$6.27M 1523
2022
Q2
$6.27M Sell
139,814
-313,852
-69% -$14.1M 0.01% 153
2022
Q1
$22.5M Buy
453,666
+275,238
+154% +$13.7M 0.01% 41
2021
Q4
$11.6M Sell
178,428
-432,922
-71% -$28.2M 0.01% 91
2021
Q3
$34.5M Buy
611,350
+516,392
+544% +$29.1M 0.03% 37
2021
Q2
$6.76M Buy
94,958
+28,030
+42% +$1.99M 0.01% 104
2021
Q1
$4.47M Sell
66,928
-38,006
-36% -$2.54M 0.01% 146
2020
Q4
$5.81M Sell
104,934
-674,674
-87% -$37.4M 0.01% 224
2020
Q3
$28.5M Buy
779,608
+576,057
+283% +$21.1M 0.02% 79
2020
Q2
$8.99M Sell
203,551
-255,620
-56% -$11.3M 0.01% 167
2020
Q1
$19.1M Buy
459,171
+406,607
+774% +$16.9M 0.02% 109
2019
Q4
$3.34M Buy
52,564
+48,668
+1,249% +$3.09M ﹤0.01% 266
2019
Q3
$232K Sell
3,896
-411,597
-99% -$24.5M ﹤0.01% 585
2019
Q2
$19.8M Buy
415,493
+271,802
+189% +$12.9M 0.02% 59
2019
Q1
$6.91M Sell
143,691
-32,823
-19% -$1.58M 0.01% 111
2018
Q4
$6.53M Buy
176,514
+51,830
+42% +$1.92M 0.01% 128
2018
Q3
$7.3M Buy
124,684
+56,516
+83% +$3.31M 0.01% 87
2018
Q2
$5.28M Sell
68,168
-80,049
-54% -$6.2M 0.01% 109
2018
Q1
$13.7M Buy
148,217
+78,652
+113% +$7.26M 0.02% 53
2017
Q4
$5.53M Sell
69,565
-46,823
-40% -$3.72M 0.01% 105
2017
Q3
$10.1M Buy
116,388
+74,054
+175% +$6.4M 0.02% 58
2017
Q2
$3.75M Buy
+42,334
New +$3.75M 0.01% 120
2017
Q1
Sell
-7,523
Closed -$511K 2394
2016
Q4
$511K Buy
+7,523
New +$511K ﹤0.01% 299
2016
Q3
Sell
-30,280
Closed -$1.43M 2131
2016
Q2
$1.43M Buy
30,280
+24,739
+446% +$1.17M ﹤0.01% 183
2016
Q1
$262K Sell
5,541
-6,926
-56% -$327K ﹤0.01% 325
2015
Q4
$749K Sell
12,467
-1,203
-9% -$72.3K ﹤0.01% 302
2015
Q3
$1.09M Sell
13,670
-76,941
-85% -$6.11M ﹤0.01% 300
2015
Q2
$7.11M Buy
90,611
+80,155
+767% +$6.29M 0.02% 118
2015
Q1
$952K Sell
10,456
-7,263
-41% -$661K ﹤0.01% 310
2014
Q4
$1.96M Buy
+17,719
New +$1.96M 0.01% 249
2014
Q3
Sell
-6,057
Closed -$559K 1646
2014
Q2
$559K Sell
6,057
-70,330
-92% -$6.49M ﹤0.01% 376
2014
Q1
$7.01M Buy
76,387
+64,617
+549% +$5.93M 0.04% 50
2013
Q4
$988K Buy
11,770
+1,319
+13% +$111K ﹤0.01% 203
2013
Q3
$663K Buy
10,451
+2,157
+26% +$137K ﹤0.01% 183
2013
Q2
$515K Buy
+8,294
New +$515K ﹤0.01% 199