2011-01-01 * Opening balance
    Assets:Broker                           250.00 GBP = 250.00 GBP
    Equity:Opening balance                 -250.00 GBP

2011-02-01 * Buy 1 AAA for 10.00 GBP
    Assets:Broker                                1 AAA = 1 AAA
    Assets:Broker                           -10.00 GBP

2011-03-01 * Buy 1 AAA for 10.00 GBP
    Assets:Broker                                1 AAA = 2 AAA
    Assets:Broker                           -10.00 GBP

2011-04-01 * Buy 1 BBB for 15.00 GBP
    Assets:Broker                                1 BBB = 1 BBB
    Assets:Broker                           -15.00 GBP

test bal
               2 AAA
               1 BBB
          215.00 GBP  Assets:Broker
         -250.00 GBP  Equity:Opening balance
--------------------
               2 AAA
               1 BBB
          -35.00 GBP
end test