Options Trading Rules　

Options Trading Rules　《期权交易规则》　

Option trading rules pertain to a set of procedures related to a legally binding contract between two investors to buy or sell the right to instruments，such as stock，stock indexes or commodities.The contract can be purchased at a specific price and for a predetermined time.Individuals called“options writers”，sell options to individual investors.In the United States，stocks options are traded on six different option exchanges.Many investors trade options because they may profit on the movement of a stock without having to buy it outright.