let
    // Read both funds' files (one GET each, no key), naming your own project
    Options = [Headers = [
        #"User-Agent" = "MyProject/1.0 (+https://example.com)"]],
    Voo = Json.Document(Web.Contents(
        "https://tickerinside.com/api/v1/fund/voo.json", Options)),
    Qqq = Json.Document(Web.Contents(
        "https://tickerinside.com/api/v1/fund/qqq.json", Options)),
    // The tickers both funds hold
    Shared = List.Intersect({Record.FieldNames(Voo[holdings]),
        Record.FieldNames(Qqq[holdings])}),
    // Overlap by weight, as the site computes it: for every ticker both
    // funds hold, add the smaller of its two weights
    Overlap = List.Sum(List.Transform(Shared, each List.Min({
        Record.Field(Voo[holdings], _), Record.Field(Qqq[holdings], _)}))),
    // One row: the figure, the date of each fund's file, the lines to cite
    Result = #table(
        type table [overlap_by_weight_pct = number, companies_in_both = number,
            voo_holdings_as_of = date, qqq_holdings_as_of = date,
            voo_cite_as = text, qqq_cite_as = text],
        {{Number.Round(Overlap, 1, RoundingMode.AwayFromZero),
            List.Count(Shared),
            Date.FromText(Voo[holdings_as_of]),
            Date.FromText(Qqq[holdings_as_of]),
            Voo[cite_as], Qqq[cite_as]}})
in
    Result