Day trading is probably the most well-known form of active trading. It is often considered a pseudonym for the active transaction itself. Day trading, as the name suggests, is a method of buying and selling securities on the same day. Positions are closed on the same day they are occupied, and no positions are held overnight. Traditionally, day trading is carried out by professional traders such as experts or market makers. However, electronic trading has opened up the practice to novice traders.