stock unit doubled

  1. 9 Posts.
    Hi guys,

    Am new to stock trading,

    EG,
    Bought a certain stock at 100 units using commsec,

    an hour later after the market closes,
    Stock units i have doubled to 200 units,
    They are under the term available units,


    Did anyone experience this type of situation before??
    If so should i be worried??

    thanks

 
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