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quarterly holdings since 2019, from its SEC Form N-PORT filings, TickerInside, https://tickerinside.com/api/v1/quarterly/mgk.json","answer":"In MGK's SEC filings, its largest position went from Microsoft (MSFT) at 10.49% on 2019-11-30 to Nvidia (NVDA) at 13.27% on 2026-06-30, across 27 quarterly reports."}