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 ...

What exactly are the major differences between the above? I can't find any real good information out there anywhere on the net. They all seem to accomplish the same tasks, and from what I can see, it ...

Call and put options are quoted in a table called a chain sheet. The chain sheet shows the price, volume and open interest for each option strike price and expiration month. Nasdaq provides call and ...