21 ms·

The moment the information is public.

• Closi 6y ago
  You have to leave a reasonable amount of time to ensure that the information can be priced into the market.
  • Dylan16807 6y ago
    The market's made of computers reading press releases, so that's well under a second.
    • im3w1l 6y ago
      That's just the market's "gut reaction" so to speak.