QCharts Intraday Open vs. Daily Open

Discussion in 'Trading Software' started by kempo, Sep 8, 2002.

  1. kempo


    Has anyone ever noticed that the open price on the daily bar is often different from the open price on the first intraday bar(any time frame)?

    For example- using QQQ:

    8/22/02- Daily Open=25.94 Intraday Open=25.74
    8/26/02- Daily Open=25.32 Intraday Open=25.30
    8/27/02- Daily Open=24.97 IntradayOpen=25.43---.46!!!
    8/28/02 - Daily Open=24.02 Intraday Open=24.05

    The Open price in Quote Sheets and Snapshot=Intraday Open.

    It isn't everyday but it's quite often. So, what's the real open
    price? Shouldn't the daily open be the daily open? Or am I missing something?

    I use 3rd party software for backtesting and base intraday trades off of the daily open--quite frustrating!

    Is this the same with other data providers?