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Zweig-DiMenna Associates’s Onto Innovation ONTO Stock Holding History

Zweig-DiMenna Associates’s Portfolio ONTO Stock Details ONTO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$12.3M Buy
+32,600
New +$9.23M 1.12% 36
2025
Q1 		– Sell
-27,400
Closed -$4.57M – 94
2024
Q4 		$4.57M Buy
27,400
+182
+0.7% +$33.3K 0.34% 65
2024
Q3 		$5.65M Sell
27,218
-13,232
-33% -$2.67M 0.57% 52
2024
Q2 		$8.88M Sell
40,450
-3,150
-7% -$651K 1% 37
2024
Q1 		$7.9M Buy
+43,600
New +$7.36M 0.69% 57

Other funds holding ONTO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
PCMI
Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $90.7B AUM 77.13% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Zweig-DiMenna Associates's ONTO Position: Q2 2026 in Review

Zweig-DiMenna Associates opened a new position in Onto Innovation (ONTO) in Q2 2026: 32,600 shares worth $12.3M. The stake represents 1.12% of the portfolio and ranks #36 among its holdings. This is a return to the name: Zweig-DiMenna Associates previously reported a position in ONTO as recently as Q4 2024.

Zweig-DiMenna Associates first reported a position in ONTO in Q1 2024 and has held it in 5 quarters since. 692 funds tracked by Wall St. Rank hold ONTO as of Q2 2026.

  • Zweig-DiMenna Associates held 32,600 shares of Onto Innovation worth $12.3M as of Q2 2026.
  • Onto Innovation was a new Zweig-DiMenna Associates position in Q2 2026.
  • Onto Innovation made up 1.12% of Zweig-DiMenna Associates's portfolio in Q2 2026, its #36 holding.
  • Zweig-DiMenna Associates first reported a position in Onto Innovation in Q1 2024 and has held it in 5 quarters since.
  • 692 funds tracked by Wall St. Rank held Onto Innovation as of Q2 2026.

Based on Zweig-DiMenna Associates's 13F filing for Q2 2026, filed 13 Aug 2026.