Western Digital
WDC
1,836 hedge funds and large institutions have $206B invested in Western Digital in 2026 Q2 according to their latest regulatory filings, with 531 funds opening new positions, 588 increasing their positions, 602 reducing their positions, and 87 closing their positions.
510% more first-time investments, than exits
New positions opened: 531 | Existing positions closed: 87
129% more capital invested
Capital invested by funds: $90B → $206B (+$116B)
93.01% more ownership
Funds ownership: 98.74% → 191.75% (+93%)
72% more funds holding in top 10
Funds holding in top 10: 36 → 62 (+26)
30% more funds holding
Funds holding: 1,415 → 1,836 (+421)
2% less repeat investments, than reductions
Existing positions increased: 588 | Existing positions reduced: 602
62% less call options, than puts
Call options by funds: $8.87B | Put options by funds: $23.5B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
California State Teachers Retirement System (CalSTRS)
West Sacramento,
California
|
+$164B |
| 2 |
Capital World Investors
Los Angeles,
California
|
+$2.29B |
| 3 |
UBS AM
Chicago,
Illinois
|
+$895M |
| 4 |
Capital International Investors
Los Angeles,
California
|
+$877M |
| 5 |
Invesco
Atlanta,
Georgia
|
+$870M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
-$2.74B |
| 2 |
WCM Investment Management
Laguna Beach,
California
|
-$2.4B |
| 3 |
Vanguard Portfolio Management
Malvern,
Pennsylvania
|
-$1.98B |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$1.42B |
| 5 |
BlackRock
New York
|
-$1.37B |
WDC Hedge Fund Activity: Q2 2026 in Review
1,836 of the 8,280 institutional investors tracked by Wall St. Rank reported a position in Western Digital (WDC) for Q2 2026, worth a combined $206B — up 129% from $90B a quarter earlier.
Buyers outnumbered sellers: 531 funds opened new WDC positions and 87 closed out — a net gain of 444 holders — while 588 added to existing stakes and 602 trimmed.
The largest buyer was California State Teachers Retirement System (CalSTRS), adding an estimated $164B. The largest seller was Fidelity Investments, cutting an estimated $2.74B.
- 1,836 institutional investors held Western Digital (WDC) as of Q2 2026, up from 1,415 in Q1 2026.
- Funds reported $206B of Western Digital stock for Q2 2026, up 129% quarter-over-quarter.
- 531 funds opened new Western Digital positions in Q2 2026 and 87 closed out, a net change of +444 holders.
- The largest Western Digital buyer in Q2 2026 was California State Teachers Retirement System (CalSTRS), an estimated $164B added.
- The largest Western Digital seller in Q2 2026 was Fidelity Investments, an estimated $2.74B sold.
Based on aggregated 13F filings for Q2 2026.