SELECT TOP 5 [Portfolio list].ReportNameAbr, MainData.AsOfDate, Sum(MainData.WARFamount) AS SumOfWARFamount, Sum(MainData.ParAmountTraded) AS SumOfParAmountTraded, [SumOfWARFamount]/[SumOfParAmountTraded] AS Expr1
FROM MainData INNER JOIN [Portfolio list] ON MainData.Portfolio_Name = [Portfolio list].SystemName
GROUP BY [Portfolio list].ReportNameAbr, MainData.AsOfDate
ORDER BY MainData.AsOfDate;