alt Hacker News> I never saw a need for this in HFT. In my experience, GPS was used instead, but there was never any critical need for microsecond accuracy in live systems.
mifid ii (uk/eu) minimum is 1us granularity
https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv:...
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dmurray • yesterday at 10:21 PM
It's 1 us granularity, which means you should report your timestamps with six figures after the decimal point.
The required accuracy (Tables 1 and 2 in that document) is 100 us or 1000 us depending on the system.
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> mifid ii (uk/eu) minimum is 1us granularity
1us is nothing special for GPS/NTP/PTP appliances (especially with OCXO/rubidium oscillators):
* https://www.microchip.com/en-us/products/clock-and-timing/sy...
* https://www.meinbergglobal.com/english/productinfo/gps-time-...