Pink Sheets

What some very macho rock stars sleep on.

Also, a publication by the National Quotation Bureau that lists prices of over-the-counter (OTC) stocks—usually shares of delisted or very small, thinly-traded companies. These shares don't need to file papers with the SEC or meet their rules the way that stocks on exchanges do; they tend to be highly illiquid and have (maybe) a single dealer.

Thanks to that publication (which used to be printed on pink paper), trading OTC stocks is sometimes referred to as trading on the pink sheets.

If a company's stock symbol includes the letters "PK," it trades on the pink sheets. No word on whether matching shams and throw pillows are included.