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quarterly holdings since 2019, from its SEC Form N-PORT filings, TickerInside, https://tickerinside.com/api/v1/quarterly/powr.json","answer":"In POWR's SEC filings, its largest position went from ExxonMobil (XOM) at 13.86% on 2019-11-30 to GE Vernova (GEV) at 7.59% on 2026-06-30, across 27 quarterly reports."}