NOK is the stock ticker symbol for the formerly-most-highly-valued-company on the planet.
NOK, at its peak in the late ‘90s, set a market cap record for being valued well into the hundred billion zone. It’s noteworthy among Wall Street people because, through terrified, Chicken Little, risk-averse management, the company gave to Apple a massive market it should have owned. Insert lots of stereotypical jokes about overly conservative Finland here (NOK was based in Helsinki), and you get the dinner table conversation of young portfolio managers in New York in 2002 when the company was clearly on its way to virtual irrelevance in the tech and telecom wars of the era.
You don’t want to be NOK’d.