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Western Digital

1,835 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, 587 increasing their positions, 602 reducing their positions, and 87 closing their positions.

New
Increased
Maintained
Reduced
Closed

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)

72% more funds holding in top 10

Funds holding in top 10: 3662 (+26)

30% more funds holding

Funds holding: 1,4151,835 (+420)

2% less repeat investments, than reductions

Existing positions increased: 587 | Existing positions reduced: 602

5.16% less ownership

Funds ownership: 98.74%93.58% (-5.2%)

62% less call options, than puts

Call options by funds: $8.87B | Put options by funds: $23.5B

Holders
1,835
Holders Change
+420
Holders Change %
+29.68%
% of All Funds
22.16%
Holding in Top 10
62
Holding in Top 10 Change
+26
Holding in Top 10 Change %
+72.22%
% of All Funds
0.75%
New
531
Increased
587
Reduced
602
Closed
87
Calls
$8.87B
Puts
$23.5B
Net Calls
-$14.7B
Net Calls Change
-$10.9B
Name Holding Trade Value Shares
Change
Change in
Stake
Vanguard Fiduciary Trust
26
Vanguard Fiduciary Trust
Pennsylvania
$1.26B +$34.4M +70,806 +4%
D.E. Shaw & Co
27
D.E. Shaw & Co
New York
$1.21B -$382M -786,443 -29%
Amundi
28
Amundi
France
$1.16B -$605M -1,244,834 -41%
Capital International Investors
29
Capital International Investors
California
$1.15B +$877M +1,803,588 New
ETC
30
Exchange Traded Concepts
Oklahoma
$1.14B +$845M +1,738,509 +3,399%
WCM Investment Management
31
WCM Investment Management
California
$1.06B -$2.4B -4,929,689 -75%
Bank of Montreal
32
Bank of Montreal
Ontario, Canada
$1.04B +$112M +229,633 +16%
BNP Paribas Financial Markets
33
BNP Paribas Financial Markets
France
$954M +$148M +304,637 +26%
AC
34
Anther Capital
$902M +$340M +699,180 +98%
Deutsche Bank
35
Deutsche Bank
Germany
$886M -$236M -486,328 -26%
National Pension Service
36
National Pension Service
South Korea
$882M -$27.7M -57,060 -4%
MRCP
37
Maple Rock Capital Partners
Ontario, Canada
$867M -$20.7M -42,600 -3%
Royal Bank of Canada
38
Royal Bank of Canada
Ontario, Canada
$838M +$19.9M +40,957 +3%
UBS Group
39
UBS Group
Switzerland
$804M -$1.42B -2,923,969 -70%
HSBC Holdings
40
HSBC Holdings
United Kingdom
$753M -$178M -366,388 -24%
Jane Street
41
Jane Street
New York
$672M +$495M +1,017,740 +2,949%
Citigroup
42
Citigroup
New York
$643M +$211M +434,507 +76%
VARA
43
Value Aligned Research Advisors
New Jersey
$631M -$149M -307,010 -24%
TA
44
Trivest Advisors
Hong Kong
$628M +$310M +637,600 +185%
Swiss National Bank
45
Swiss National Bank
Switzerland
$623M -$13.3M -27,320 -3%
Qube Research & Technologies (QRT)
46
Qube Research & Technologies (QRT)
United Kingdom
$585M +$445M +915,929 New
National Bank of Canada
47
National Bank of Canada
Quebec, Canada
$581M +$231M +474,815 +109%
CHP
48
Castle Hook Partners
New York
$577M +$11.9M +24,435 +3%
Mitsubishi UFJ Asset Management
49
Mitsubishi UFJ Asset Management
Japan
$559M +$38.2M +78,599 +10%
Wells Fargo
50
Wells Fargo
California
$551M -$78.3M -161,100 -16%

WDC Hedge Fund Activity: Q2 2026 in Review

1,835 of the 8,279 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 587 added to existing stakes and 602 trimmed.

The largest buyer was Capital World Investors, adding an estimated $2.29B. The largest seller was Fidelity Investments, cutting an estimated $2.74B.

  • 1,835 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 Capital World Investors, an estimated $2.29B 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.