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Refers to the magnitude of an offering, an order, or a trade. Large as in the size of an offering, the size of an order, or the size of a trade. Size is relative from market to market and security to security. "I can buy size at 102-22," means that a trader can buy a significant amount at 102-22. Small is <10,000 shares. Medium is 15,000-25,000 shares. Good is 50,000 shares. Size is 100,000 shares. Good six-figure size is 200,000-300,000 shares. Multiple six-figure size is >300,000 shares. Size of the market is actual number of shares represented in one's market, or bid and offering; unless specified, assumed to be at least 500 to 1000 shares, depending on the stock.
1. The market for a security in which a relatively large volume is being offered for sale or in which a large volume can be absorbed. Size in a security is more important for institutional investors than it is for individuals, because most individuals usually do not trade in sufficiently high volume to warrant concern about the size of the market.
2. The number of units bid for and offered in the current quote, usually expressed in abbreviated form, such as, BP 5.10-.15, 2,000 by 1,000.