span
Từ điển Collocation
span noun
1 length
ADJ. full | broad, wide a broad span of interests | clear The bridge has a clear span of 36 metres. | 12-foot, 500-metre, etc. | wing (also wingspan) The bird has a 1-metre wingspan.
2 length of time
ADJ. long | short | 10-day, 2-week, etc. | entire | allotted The speech continued well beyond its allotted span. | time | life (also lifespan) | attention, concentration, memory He has a short attention span.
VERB + SPAN cover The book covers the entire span of Arab history.
PREP. over a/the ~ Developments were monitored over a span of two years.
PHRASES a span of time/years
Từ điển WordNet
Microsoft Computer Dictionary
n. See range.
Bloomberg Financial Glossary
To cover all contingencies within a specified range.
Investopedia Financial Terms
SPAN Margin
Short for standardized portfolio analysis of risk (SPAN). This is a leading margin system, which has been adopted by most options and futures exchanges around the world. SPAN is based on a sophisticated set of algorithms that determine margin according to a global (total portfolio) assessment of the one-day risk for a trader's account.
Investopedia Says:
Options and futures writers are required to have a sufficient amount of margin in their accounts to cover potential losses. The SPAN system, through its algorithms, sets the margin of each position to its calculated worst possible one-day move. The system, after calculating the margin of each position, can shift any excess margin on existing positions to new positions or existing positions that are short of margin.
English Synonym and Antonym Dictionary
spans|spanned|spanning
syn.: bridge distance expanse extent interval measure period reach spell stretch viaduct
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