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QJ

It stands for queue jumping; a practice by specific traders on an exchange who exploit sub-penny venues (SPVs) to post...

Queue Jumping

A practice by specific traders on an exchange who exploit sub-penny venues (SPVs) to post orders on a finer grid...

SPT

An acronym for sub-penny trading; a trading practice where brokers and dealers post orders in dark (invisible) venues and unregulated...

Sub-Penny Trading

A trading practice where brokers and dealers post orders in dark (invisible) venues and unregulated markets in increments small than...

Midpoint Order

A peg (a pegged order) that has a floating execution price that is pegged to the movements of a midpoint...

Sub-Penny Jumping

A jargon term (coined in the early 1990s) that surfaced in the market in the aftermath of changing the minimum...

Penny Jumping

A jargon term (coined in the early 1990s) that surfaced in the market in the aftermath of changing the minimum...

Pegging Algorithm

A trading algorithm that pegs its "floating" execution price to the movements of a reference price. It enables traders to...

IS

It stands for implementation shortfall; a measure of trading inefficiency- i.e., it measures the cost of trade implementation. For purchases...

Whisper

A trading algorithm (algo)- specifically, a pegging algorithm- that can passively capture price spread by having access to a venue's...