Three zeroes to the right of the decimal point: 0.000_
This is very. very basic stuph.
0.00099 and below is the trips. Today this turd hit 0.0011 on large volume (relative to recent volume) - just two tiny ticks away from triple zips/triple naughts/three goose eggs ... aka DaTripps..
It is similar to a physician calling a time of death.