Definition of "downtick" [downtick]

• A decrease, especially a small or incremental one. (noun)
• A transaction in a stock market security below the price of the previous transaction. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "If the DJIA rises by the target amount, the collar is called the downtick rule."
• "Securities and Exchange Commission (SEC) of the speculative prevention rule called the downtick-uptick rule (which prohibited short-selling when stock prices were falling), in July 2006."
• "Securities and Exchange Commission (SEC) of the speculative prevention rule called the downtick-uptick rule (which prohibited short-selling when stock prices were falling), in July"