Dark pool trades, or prints, are equity block trades executed over-the-counter (OTC) through a private exchange only available to institutional investors.
These private exchanges (also called Alternative Trading Systems) are known as “dark pools” due to their complete lack of transparency.
According to the CFA Institute, dark pools are continuing to rise in popularity. An estimated 40% of all stock trades were executed in dark pools in 2017, compared to an estimated 16% in 2010.