Precision back-testing Ask Bid not aligning  [SOLVED]

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StefanoSF
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Precision back-testing Ask Bid not aligning

Postby StefanoSF » 09 Oct 2012

While using the Precision Back testing method on a tick bar chart (plotting ASK and BID on same chart) I noticed that the ASK and BID bars are not aligned vertically with on another. In other words at time stamp: 13:36:30 there is only ASK tick data follows by the BID data on another time stamp. Is this normal?

See attached.
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Ask Bid misaligned
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Andrew MultiCharts
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Re: Precision back-testing Ask Bid not aligning  [SOLVED]

Postby Andrew MultiCharts » 10 Oct 2012

Yes. Asks, bids and trades do not take place always simultaneously. In fact, the feature called "TickID" was introduced specifically for this purpose - to see the actual sequence of ticks in real-time on different series.
If you use IQFeed, there is one checkbox, that may help you to get this all synchronized, but some asks and bids will be lost: Generate a new Ask/Bid tick if Trade changes


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