Investors may trade in the Pre-Market (4:00-9:30 a.m. ET) and the After Hours Market (4:00-8:00 p.m. ET). Participation from Market Makers and ECNs is strictly voluntary and as a result, these ...

Our opinions are our own. Here is a list of our partners and here's how we make money. Square is one of a few providers in the space that offers a free version of its POS system. The free version ...