back spread

Spread Spread, n. 1. Extent; compass. [1913 Webster]

I have got a fine spread of improvable land. --Addison. [1913 Webster]

2. Expansion of parts. [1913 Webster]

No flower hath spread like that of the woodbine. --Bacon. [1913 Webster]

3. A cloth used as a cover for a table or a bed. [1913 Webster]

4. A table, as spread or furnished with a meal; hence, an entertainment of food; a feast. [Colloq.] [1913 Webster]

5. A privilege which one person buys of another, of demanding certain shares of stock at a certain price, or of delivering the same shares of stock at another price, within a time agreed upon. [Brokers' Cant] [1913 Webster]

6. (Geom.) An unlimited expanse of discontinuous points. [1913 Webster]

7. (Finance) An arbitrage transaction operated by buying and selling simultaneously in two separate markets, as Chicago and New York, when there is an abnormal difference in price between the two markets. It is called a

{back spread}when the difference in price is less than the normal one. [Webster 1913 Suppl.]

8. (Gems) Surface in proportion to the depth of a cut stone. [Webster 1913 Suppl.]