• Zero aptic is the purchase of a security at the same price as the transaction immediately preceding it, but at a price higher than the previous transaction.

  • Zero Growth occurs instantly when a trade is made with qualifying characteristics based on the two transactions prior to it.
  • Qualifying a zero tick trade includes trades between buyers and sellers of securities that do not change the price of that security.
  • Zero apkies were often used by short sellers to comply with the apk rule.
  • The raise rule (also known as the plus tick rule) was a law established by the SEC that required each short sale trade to be at a higher price than the previous trade - this rule was repealed in 2007.