Importation de cours en continu

Sub Timer()

    Application.OnTime Now + TimeValue("00:01:00"), "CAC40"

End Sub

Sub CAC40()
   
    'ici ton code de récup de la valeur...
    '...
    'rappel de la proc Timer pour la récup suivante
    Timer
    
End Sub

With ActiveSheet.QueryTables.Add(Connection:= _
        "URL;http://www.boursorama.com/cours.phtml?symbole=1rPCAC", Destination:= _
        Range("A1"))
        .Name = "cours.phtml?symbole=1rPCAC"
        .FieldNames = True
        .RowNumbers = False
        .FillAdjacentFormulas = False
        .PreserveFormatting = True
        .RefreshOnFileOpen = False
        .BackgroundQuery = True
        .RefreshStyle = xlInsertDeleteCells
        .SavePassword = False
        .SaveData = True
        .AdjustColumnWidth = True
        .RefreshPeriod = 0
        .WebSelectionType = xlSpecifiedTables
        .WebFormatting = xlWebFormattingNone
        .WebTables = "6"
        .WebPreFormattedTextToColumns = True
        .WebConsecutiveDelimitersAsOne = True
        .WebSingleBlockTextImport = False
        .WebDisableDateRecognition = False
        .WebDisableRedirections = False
        .Refresh BackgroundQuery:=False
    End With

Sub Timer()

    Application.OnTime Now + TimeValue("00:01:00"), "CAC40"

End Sub

Sub CAC40()
   
    Range("A1").QueryTable.Refresh BackgroundQuery:=False

    Call Timer
    
End Sub

  .RefreshPeriod = 1