387a388,397
>         LocalDate lastStoredDate = null;
>         LocalDate previousStoredDate = null; 
>         
>         Optional<Pair<SecurityPrice, SecurityPrice>> previous = getLatestTwoSecurityPrices();
>         if (previous.isPresent())
>         {
>             lastStoredDate = previous.get().getLeft().getDate();
>             previousStoredDate = previous.get().getRight().getDate();
>         }
>          
399c409
<                 boolean doOverwrite = p.getDate().equals(last);
---
>                 boolean doOverwrite = (p.getDate().equals(last) || p.getDate().equals(lastStoredDate)|| p.getDate().equals(previousStoredDate));