Buy & Sell Orders – each exchange has their own method of placing buy or sell orders but generally speaking the interface is similar as that of a trading application. This requires some familiarisation with the exchange interfaces. In essence, there are two sides on any exchange: people who want to sell, and people who want to buy. Everybody can sell or buy at the price they want, but obviously buyers want to buy at the cheapest price and sellers want to make the biggest profit, which means that eventually a middle point will be reached where the transactions take place. It’s common for people to cancel their sell or buy orders and put in place new ones by 0.00001 increments just to get the « top » place on the buy or sell list, i.e. sell at the « lowest price » or buy at the « highest price » in order to have their order fulfilled. Once you buy (or sell) the balances get adjusted accordingly
Portfolio managers are professionals who invest portfolios, or collections of securities, for clients. These managers get recommendations from analysts and make the buy or sell decisions for the portfolio. Mutual fund companies, hedge funds, and pension plans use portfolio managers to make decisions and set the investment strategies for the money they hold.
Dollar-cost average: This sounds complicated, but it’s not. Dollar-cost averaging means investing a set amount of money at regular intervals, such as once per week or month. That set amount buys more shares when the stock price goes down and fewer shares when it rises, but overall, it evens out the average price you pay. Some online brokerage firms let investors set up an automated investing schedule.