Excel VBA Macro: Autofill a list in a Weekday frequency - vba

Question

With this macro I am able to insert a new row at the bottom of a daily time-series data. The macro performs well, but even though I specified to fill the series with Weekdays and avoid weekends, it still not do so and fills with all the days of the week.
Any suggestions on what I might be missing?
Please also see the screenshot for a better understanding.
Thank a lot.
Sub Weekday_Data_Update()
Range("A2").Select
Selection.End(xlDown).Select
ActiveCell.Offset(-1, 0).Range("A1").Select
Range(Selection, Selection.End(xlToRight)).Select
Range(Selection, Selection.End(xlDown)).Select
Selection.Resize(3).Select
Selection.DataSeries Rowcol:=xlColumns, Type:=xlAutoFill, Date:=xlWeekday, _
Trend:=False
End sub
Example of how the macro is filling the dates wrongly

Answer 1

I am confused by all your up, down, across movement. To simply extend dates across a range only using weekdays would have syntax such as follows:
Option Explicit
Public Sub Test()
With Worksheets("Sheet1")
.Range("A2").AutoFill Destination:=.Range("A2:A7"), Type:=xlFillWeekdays
End With
End Sub
You can construct a fill to last used cell as follows:
.Range("A2").AutoFill Destination:=.Range(.Cells(2, "A"), .Cells(.Cells.SpecialCells(xlLastCell).Row, "A")), Type:=xlFillWeekdays

Answer 2

Just to break it down, the below code will print ONLY the Weekdays
Sub Weekday_Data_Update()
Dim startRange As Range
Dim stopRange As Range
'Specify the cell where the date starts
Set startRange = Sheets("Sheet1").Range("A2")
'Specify the cell until which you want weekdays to be displayed
Set stopRange = Sheets("Sheet1").Range("A2:A6")
startRange.Select
Selection.AutoFill Destination:=stopRange, Type:=xlFillWeekdays
End Sub
P.S: Not sure why you many range selections in your code.

Answer 3

According to MSDN, Date:=xlWeekday is only applicable when you use Type:=xlChronological
So, try
Selection.DataSeries Rowcol:=xlColumns, Type:=xlChronological, Date:=xlWeekday, _
Trend:=False
Refer to MSDN help for further details