Populating listview on form_load [RESOLVED]

[iPrank]

You have declared FillListView as,

Sub FillListView(lstStocks As ListView, rsStocks As ADODB.Recordset, Optional ImgNum As Long = 0)

The third parameter, ImgNum, is optional. You may omit it.
But the first 2 parameters are NOT optional. You must pass them to the procedure.
But you aren't pasing anything to it in your call in Form_Load

You should call it like,

Call FillListView lstStocks, rsStocks 'the third parameter is Optional

Or,
as both the listview and the recordset are in same scope, you can change the definition like,

Sub FillListView(Optional ImgNum As Long = 0)

and then, your current call will work.