I have 7 BT.A transactions showing in my FOLIO , the aggregate value shows that the overall cost of the holding is £2,082; however the Overview for BT.A shows a cost of £3,311. 

My holding of Balfour Beatty has a similar anomaly - £2,159 actual against £2,351 in the Overview.

Legal & General also shows the same anomaly - £2,293 actual against £2,665 in the Overview

These are the only holdings that I have checked to date, but I'm sure that they are not the only ones.  

These differences come to £1793 which obviously downgrades the apparent performance - the difference between the portfolio cost and its current value is thus inaccurate

Can anyone explain what's going on here ?  Have I missed something ?

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