triple witching
Stock Market informal (originally US )
noun
A trading session during which three types of derivatives contracts expire, typically associated with volatile and unpredictable trading; frequently attributive, especially (in triple witching hour) designating the final hour of such a trading session; also in extended use.
Origin
1980s; earliest use found in The New York Times.
- haemocytometer
- haemodialysis
- haemodynamic
- haemodynamically
- haemodynamics
- haemoglobin
- haemoglobinopathy
- haemoglobinuria
- wastebasket
- waste bin
- wasted
- waste disposal unit
- waste disposer
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- waste not, want not
- waste of space
- waste one's breath
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- waster