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quarterly holdings since 2019, from its SEC Form N-PORT filings, TickerInside, https://tickerinside.com/api/v1/quarterly/crbn.json","answer":"In CRBN's SEC filings, its largest position went from Apple Inc. (AAPL) at 2.45% on 2019-10-31 to Nvidia (NVDA) at 4.56% on 2026-07-31, across 28 quarterly reports."}