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 | $18.5M | Sell |
68,462
-28,755
| -30% | -$7.51M | 0.05% | 263 |
|
|
2025
Q4 | $16.7M | Buy |
97,217
+60,186
| +163% | +$9.13M | 0.03% | 343 |
|
|
2025
Q3 | $4.45M | Sell |
37,031
-47,971
| -56% | -$3.92M | 0.01% | 706 |
|
|
2025
Q2 | $5.44M | Sell |
85,002
-6,778
| -7% | -$323K | 0.01% | 603 |
|
|
2025
Q1 | $3.71M | Buy |
91,780
+12,598
| +16% | +$598K | 0.01% | 700 |
|
|
2024
Q4 | $3.57M | Sell |
79,182
-6,219
| -7% | -$313K | 0.01% | 955 |
|
|
2024
Q3 | $4.41M | Sell |
85,401
-51,870
| -38% | -$2.62M | 0.01% | 846 |
|
|
2024
Q2 | $7.86M | Buy |
137,271
+22,346
| +19% | +$1.24M | 0.02% | 565 |
|
|
2024
Q1 | $5.93M | Buy |
+114,925
| New | +$5.03M | 0.01% | 672 |
|
|
2023
Q2 | – | Sell |
-141,790
| Closed | -$3.94M | – | 2915 |
|
|
2023
Q1 | $4.04M | Buy |
+141,790
| New | +$4.16M | 0.01% | 951 |
|
|
2022
Q3 | – | Sell |
-184,974
| Closed | -$6.14M | – | 3404 |
|
|
2022
Q2 | $6.27M | Sell |
184,974
-415,226
| -69% | -$16.7M | 0.01% | 893 |
|
|
2022
Q1 | $22.5M | Buy |
600,200
+364,140
| +154% | +$14.9M | 0.01% | 465 |
|
|
2021
Q4 | $11.6M | Sell |
236,060
-572,756
| -71% | -$24.9M | 0.01% | 556 |
|
|
2021
Q3 | $34.5M | Buy |
808,816
+683,187
| +544% | +$32.5M | 0.03% | 325 |
|
|
2021
Q2 | $6.76M | Buy |
125,629
+37,083
| +42% | +$2.01M | 0.01% | 591 |
|
|
2021
Q1 | $4.47M | Sell |
88,546
-50,282
| -36% | -$2.35M | 0.01% | 537 |
|
|
2020
Q4 | $5.81M | Sell |
138,828
-892,593
| -87% | -$29.6M | 0.01% | 898 |
|
|
2020
Q3 | $28.5M | Buy |
1,031,421
+762,123
| +283% | +$22.7M | 0.02% | 597 |
|
|
2020
Q2 | $8.99M | Sell |
269,298
-338,185
| -56% | -$11M | 0.01% | 845 |
|
|
2020
Q1 | $19.1M | Buy |
607,483
+537,941
| +774% | +$23.8M | 0.02% | 418 |
|
|
2019
Q4 | $3.34M | Buy |
69,542
+64,388
| +1,249% | +$2.69M | ﹤0.01% | 1074 |
|
|
2019
Q3 | $232K | Sell |
5,154
-544,543
| -99% | -$23.2M | ﹤0.01% | 1816 |
|
|
2019
Q2 | $19.8M | Buy |
549,697
+359,594
| +189% | +$12.3M | 0.02% | 357 |
|
|
2019
Q1 | $6.91M | Sell |
190,103
-43,425
| -19% | -$1.49M | 0.01% | 589 |
|
|
2018
Q4 | $6.53M | Buy |
233,528
+68,571
| +42% | +$2.43M | 0.01% | 643 |
|
|
2018
Q3 | $7.3M | Buy |
164,957
+74,771
| +83% | +$3.79M | 0.01% | 576 |
|
|
2018
Q2 | $5.28M | Sell |
90,186
-105,905
| -54% | -$6.74M | 0.01% | 598 |
|
|
2018
Q1 | $13.7M | Buy |
196,091
+104,057
| +113% | +$7M | 0.02% | 321 |
|
|
2017
Q4 | $5.53M | Sell |
92,034
-61,947
| -40% | -$3.99M | 0.01% | 574 |
|
|
2017
Q3 | $10.1M | Buy |
153,981
+97,973
| +175% | +$6.5M | 0.02% | 408 |
|
|
2017
Q2 | $3.75M | Buy |
+56,008
| New | +$3.72M | 0.01% | 651 |
|
|
2017
Q1 | – | Sell |
-9,953
| Closed | -$572K | – | 4766 |
|
|
2016
Q4 | $511K | Buy |
+9,953
| New | +$459K | ﹤0.01% | 1499 |
|
|
2016
Q3 | – | Sell |
-40,060
| Closed | -$1.51M | – | 4060 |
|
|
2016
Q2 | $1.43M | Buy |
40,060
+32,729
| +446% | +$1.08M | ﹤0.01% | 1044 |
|
|
2016
Q1 | $262K | Sell |
7,331
-9,163
| -56% | -$328K | ﹤0.01% | 1670 |
|
|
2015
Q4 | $749K | Sell |
16,494
-1,591
| -9% | -$81.2K | ﹤0.01% | 1381 |
|
|
2015
Q3 | $1.09M | Sell |
18,085
-101,793
| -85% | -$6.12M | ﹤0.01% | 1257 |
|
|
2015
Q2 | $7.11M | Buy |
119,878
+106,045
| +767% | +$7.6M | 0.02% | 595 |
|
|
2015
Q1 | $952K | Sell |
13,833
-9,609
| -41% | -$751K | ﹤0.01% | 1287 |
|
|
2014
Q4 | $1.96M | Buy |
+23,442
| New | +$1.77M | 0.01% | 1089 |
|
|
2014
Q3 | – | Sell |
-8,013
| Closed | -$602K | – | 4542 |
|
|
2014
Q2 | $559K | Sell |
8,013
-93,047
| -92% | -$6.24M | ﹤0.01% | 1332 |
|
|
2014
Q1 | $7.01M | Buy |
101,060
+85,488
| +549% | +$5.58M | 0.04% | 315 |
|
|
2013
Q4 | $988K | Buy |
15,572
+1,745
| +13% | +$97.5K | ﹤0.01% | 853 |
|
|
2013
Q3 | $663K | Buy |
13,827
+2,854
| +26% | +$141K | ﹤0.01% | 763 |
|
|
2013
Q2 | $515K | Buy |
+10,973
| New | +$481K | ﹤0.01% | 826 |
|
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.