How to Read Dark Pool Prints

What dark pools are

Dark pools are private exchanges where institutions trade large blocks without tipping off the lit market. A $50M buy on the NYSE would move the tape; the same buy split across dark pools often does not. Prints get reported, but only after the fact.

What the prints tell you

Unusually large block prints above the daily average — especially near key support levels — can be interpreted as accumulation. The key word is "can." Dark pool prints are directionless by default (you cannot tell buyer from seller from the tape alone).

Our Dark Pool scanner flags blocks that are >3 standard deviations above a ticker's 30-day average size. Combined with bullish flow in the options market, these prints become a much more useful signal.

How to use it

Treat dark pool data as a context layer, not a standalone trigger. Look for confirmation from price action, options flow, or short interest. By itself, a big print is noise.