IB Bid/Ask prices

Discussion in 'Interactive Brokers' started by echo33029, Oct 3, 2001.

  1. echo33029

    echo33029

    I've recently started using IB and I've noticed that the bid/ask prices quoted in the pre-open market are different to what I get from other quote services (both L1 and L2).

    Can someone confirm where IB's prices are coming from in the pre open market.

    Thanks
    Echo
     
    #1     Oct 3, 2001
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  2. Nicodemus

    Nicodemus

    left field:) All kidding aside, I pretty much ignore IB's quotes.
     
    #2     Oct 3, 2001
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  3. Htrader

    Htrader Guest

    IB premarket quotes do not show market maker bids and offers, so this might be the difference.
     
    #3     Oct 3, 2001
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  4. Fohat

    Fohat

    IB pre-open market bid/ask prices show quotes directly from the ECNs, which can be executed against, instantly.

    Frequently IB ECN direct quotes are ahead of LevelII quotes by half a second, which have to be aggregated first and than rebroadcasted.

    Fohat
     
    #4     Oct 3, 2001
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