Hi im using tradestation 2000i and putting bollinger bands on weekly charts. The problem is that i cant get teh same values on an excel spreadsheet as what tradestation gives me Is the formula for calculating bollinger bands different in tradestation or what? for example: Date o h l c 23/02/2007 5942 6030 5924 6017 2/03/2007 6023 6050 5752 5770 9/03/2007 5736 5858 5614 5814 tradestation gives me a bollinger (upper band) value on 09/03 of 6081 with settings Bol(open, 3, 1.5) but there is no way i can get this when calculating by hand. HELP!!!!