There are several resources available for investors to track after-hours activity to see which securities are trading in various volumes. For example, Nasdaq offers after-hours trading details.

Nasdaq provides after-market quotes of stock trades from 4:00 P.M. EST to 8:00 P.M. EST. After Hours participation from Market Makers and ECNs is strictly voluntary. Investors who anticipate ...

Nasdaq provides after-market quotes of stock trades from 4:00 P.M. EST to 8:00 P.M. EST. After Hours participation from Market Makers and ECNs is strictly voluntary. Investors who anticipate ...