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Funds holding “ONTO INNOVATION INC”

Which closed-end funds own a security? Searches the latest N-PORT snapshot of every active fund. Enter a ticker (issuer-level: matches the vendor-mapped ticker), a CUSIP or ISIN (security-level: one specific bond or share class), or part of a name.

14 positions across 14 funds, 2 distinct securities (bonds, share classes and derivatives of the same issuer are listed separately). Weights are percent of net assets from each fund’s latest N-PORT; report dates differ by fund.

FundPositionIdentifierTypeWeightValue (USD)Report dateCoverage
GCV Gabelli Convertible & Income Securities Fund
Convertible Securities
ONTO INNOVATION INC683344AA3DBT1.22%$1.2MJun 30, 2026full (121 positions)
RMT Royce Micro-Cap Trust
U.S. Equity
Onto Innovation Inc683344105EC1.08%$10.1MJun 30, 2026full (171 positions)
GAM General American Investors Co
U.S. Equity
Onto Innovation Inc683344105EC0.94%$16.4MMar 31, 2026full (65 positions)
CCD Calamos Dynamic Convertible & Income Fund
Convertible Securities
ONTO INNOVATION INC683344AA3DBT0.93%$8.7MJul 31, 2026full (596 positions)
AIO Virtus Artificial Intelligence & Technology Opportunities Fund
Technology
ONTO INNOVATION INC683344AA3DBT0.89%$9.5MJul 31, 2026full (101 positions)
RVT Royce Small-Cap Trust
U.S. Equity
Onto Innovation Inc683344105EC0.87%$22.9MJun 30, 2026full (427 positions)
CHI Calamos Convertible Opportunities & Income Fund
Convertible Securities
ONTO INNOVATION INC683344AA3DBT0.76%$10.3MJul 31, 2026full (601 positions)
CHY Calamos Convertible & High Income Fund
Convertible Securities
ONTO INNOVATION INC683344AA3DBT0.75%$10.9MJul 31, 2026full (601 positions)
BCV Bancroft Fund
U.S. Equity
ONTO INNOVATION INC683344AA3DBT0.69%$1.3MJun 30, 2026full (88 positions)
ECF Ellsworth Growth & Income Fund
U.S. Equity
ONTO INNOVATION INC683344AA3DBT0.57%$1.3MJun 30, 2026full (99 positions)
AVK Advent Convertible & Income Fund
Convertible Securities
ONTO INNOVATION INC683344AA3DBT0.47%$3.5MJul 31, 2026full (466 positions)
CSQ Calamos Strategic Total Return Fund
Multi-Asset
ONTO INNOVATION INC683344AA3DBT0.26%$12.7MJul 31, 2026full (820 positions)
SPXX Nuveen S&P 500 Dynamic Overwrite Fund
Covered Call / Option Income
Onto Innovation Inc683344105EC0.07%$2.1MJun 30, 2026full (556 positions)
QQQX Nuveen NASDAQ 100 Dynamic Overwrite Fund
Covered Call / Option Income
Onto Innovation Inc683344105EC0.06%$908KJun 30, 2026full (228 positions)

Matching position names

ONTO INNOVATION INC · 9Onto Innovation Inc · 5

Historical holdings reports are not a real-time portfolio. Security-level matching (CUSIP/ISIN) distinguishes a company’s bonds, common shares, preferreds and derivatives; issuer-level matching groups them by name or ticker and is labelled as such. See the overlap tool to compare two portfolios.