A temporary situation which occurs when one market participant's bid is higher than another's ask . Although knowingly entering such an order is against the rules, this situation can occur due to discrepancies in timing in times of heavy volume. A unique, universally adopted, trademarked, nine-digit identifier assigned to a security used to expedite clearance and settlement and to track securities. The numbering system was chosen so that the number would contain as few characters as possible and it would be linked to an alphabetic sequence of issuer name. Day Trading Trading style of opening short-term positions and closing them the same day.
Media sometimes lumps position traders that hold open positions for several days into that category.
The number of shares of a stock that can be bought or sold without causing the price to move. A security whose value depends on an underlying asset, reference rate, or an index. Trading a derivative instead of an underlying security can be used to increase possible return, or hedge risk. Diversification Spreading investments among a wide variety of companies in different fields thus minimizing the impact of one security's decline on the portfolio. Lately many people take diversification to the extreme by owning many mutual funds, with a negative impact on their portfolios' performance.