VA
Experience: Intermediate
Platform: Custom (IB API)
Posts: 4 since Nov 2009
Thanks Given: 0
Thanks Received: 2
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The most likely explanation is that the charting vendors haven't updated their request calls and are still using `reqMktData` instead of `reqTickByTickData`. Since there are tighter restrictions on how many symbols you can monitor the raw feed on, this may be intentional. Most users can get 3 tick by tick simultaneous subscriptions, whereas they can get 100 simultaneous subscriptions with the aggregated feed.
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