historical bid ask | Reviews of Brokers and Data Feeds

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historical bid ask

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when you say iqfeed supports historical bid / ask for download, is that considered superior to a broker feed such as rithmic because the rithmic feed may only have a months backfill of bid/ask?

Is it also considered superior because broker data feeds to the tick are not as accurate as iqfeed or is bid / ask to the tick only recorded with iqfeed?

( or does it depend on platform )

Assuming that it becomes awkward to get previous months bid/ask data from a broker rithmic feed if you dont select the feed to continue over at the rollover I guess iqfeed also seems superior in that respect since you can download it. Is this correct to conclude?

Assuming I turn on a platform like multicharts or sierracharts everytrading day - can the data be just as good as iqfeed if the platforms server or my server ( computer ) just records that data and by 'just as good' I mean to the tick as accurate or less than a minute.

It would be good to know all the above

Unless something with Rithmic has changed drastically, they do not offer historical bid/ask backfill. They offer limited tick data, but that is not the same as bid/ask.

You can read all the existing threads on futures.io (formerly BMT) that discuss IQFeed vs other data feeds. IQFeed is superior as a data feed. Rithmic is not a data feed, it's an execution engine first and foremost.

Recording data on your computer is most certainly not just as good by any stretch of the imagination. Platform restarts, internet hiccups, any downtime will be a gap in data.

It's really pretty simple. If you are an average retail trader using average tools, then your broker supplied feed is probably sufficient. If you are trading for a living and want the best, then $100-150 a month in data fees is a no brainer and is close to 0% impact on your bottom line.


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