October Effect
WDC icon

October Effect’s Western Digital WDC Stock Holding History

October Effect’s Portfolio WDC Stock Details WDC Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q3 		$5.38M Sell
11,841
-740
-6% -$360K 5.47% 2
2026
Q2 		$8.04M Buy
12,581
+9,241
+277% +$4.49M 7.56% 1
2026
Q1 		$903K Buy
+3,340
New +$872K 1.04% 32

Other funds holding WDC

AMF Tjänstepension
AMF Tjänstepension Stockholm, Sweden $17.2B AUM 28.3% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $83.2B AUM 35.34% 1-Year Est. Return
AssetMark Inc
AssetMark Inc Concord, California $59.5B AUM 15.92% 1-Year Est. Return
Wealth Enhancement Advisory Services
Wealth Enhancement Advisory Services Plymouth, Minnesota $67.3B AUM 21.9% 1-Year Est. Return
New York State Teachers Retirement System (NYSTRS)
New York State Teachers Retirement System (NYSTRS) Albany, New York $52.9B AUM 36.03% 1-Year Est. Return
Cardano Risk Management
Cardano Risk Management Rotterdam, Netherlands $18.2B AUM 38.97% 1-Year Est. Return
Parnassus Investments
Parnassus Investments San Francisco, California $33.8B AUM 31.08% 1-Year Est. Return
BI Asset Management Fondsmaeglerselskab
BI Asset Management Fondsmaeglerselskab Kobenhavn, Denmark $13.1B AUM 35.37% 1-Year Est. Return
KBC Group
KBC Group Brussels, Belgium $47.9B AUM 37.61% 1-Year Est. Return
Fjarde Ap-fonden
Fjarde Ap-fonden Stockholm, Sweden $19.4B AUM 31.69% 1-Year Est. Return

October Effect's WDC Position: Q3 2026 in Review

October Effect reduced its Western Digital (WDC) stake by 5.9% in Q3 2026, selling an estimated $360K and leaving 11,841 shares worth $5.38M. The position accounts for 5.47% of the portfolio, ranked #2.

October Effect first reported a position in WDC in Q1 2026 and has held it in 3 quarters since. The position peaked at $8.04M in Q2 2026. 429 funds tracked by Wall St. Rank hold WDC as of Q3 2026.

  • October Effect held 11,841 shares of Western Digital worth $5.38M as of Q3 2026.
  • October Effect sold 740 Western Digital shares in Q3 2026, an estimated $360K.
  • Western Digital made up 5.47% of October Effect's portfolio in Q3 2026, its #2 holding.
  • October Effect first reported a position in Western Digital in Q1 2026 and has held it in 3 quarters since.
  • October Effect's Western Digital position peaked at $8.04M in Q2 2026.
  • 429 funds tracked by Wall St. Rank held Western Digital as of Q3 2026.

Based on October Effect's 13F filing for Q3 2026, filed 20 Oct 2026.