Spread
From ACT Wiki
1.
Two-way price quotations.
Bid-offer spread.
2.
Borrowing and investment.
The differential between the yields on two fixed-income securities, usually expressed in basis points.
3.
Statistics.
In statistics, spread is the extent to which data are clustered centrally, or more widely dispersed.
Measured for example by Standard deviation, Variance or Mean deviation.
