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quarterly holdings since 2019, from its SEC Form N-PORT filings, TickerInside, https://tickerinside.com/api/v1/quarterly/vot.json","answer":"In VOT's SEC filings, its largest position went from Advanced Micro Devices (AMD) at 1.52% on 2019-09-30 to Vertiv (VRT) at 2.83% on 2026-06-30, across 28 quarterly reports."}