Zero Minus Tick

Zero Minus Tick

A transaction made at the same price as the preceding trade, but at a lower price than the last trade at a different price. Also known as a zero downtick.

Notes:

For example, when trades are executed at $11, $10, and $10, the last trade at $10 is a zero-minus tick. A short sale is not permitted on a zero minus tick.

See also: Short Selling, Tick, Zero Plus Tick