What Does COB Mean?

COB means "Close of Business."

The abbreviation COB is used in financial markets and business circles with the meaning "Close of Business." COB is the end of the business day.

Other abbreviations with similar meanings to COB include:

Summary of Key Points

"Close of Business" is the most common definition for COB in business circles and on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
Definition:Close of Business
3: Guessable
Typical Users:

An Academic Look at COB

COB is an initialism abbreviation. Technically, this means it is pronounced using its individual letters (i.e., See Oh Bee). Initialisms contrast with acronyms, which are spoken like words.

What Did We Say before Texting and Social Media?

The use of COB to mean "Close of Business" pre-dates the digital era.

Example of COB Used in a Text


See Also

LOB (long bob (haircut), line of business, throw, erection) NOTB (none of their business) NOYB (none of your business) SUIT (businessman) TCB (taking care of business) VCARD (virgin card, virtual business card)