TRDTIM or TIMACT

Hi,


If I am capturing trades, quotes and corrections, and want to most granular timestamps sent by the exchange is TIMACT_NS suffice?


I ask because it seems we have

QUOTIM_NS // quote up-to nano

TRDTIM_MS (notice the millis) // trade up-to milli

TIMACT_NS // event update time up-to nano


Does TIMACT provide a timestamp for both quotes and trades?

Does it provide the most granular level of precision for the event update?

Why would one use QUOTIM_NS if TIMACT_NS is there?

Why is there no TRDTIM_NS or is TIMACT_NS suffice as a replacement for it too?

Is TIMACT_NS the correct field to use for the 'exchange time' of the trade/quote?


Regards

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