Delisting

Delisting is the removal of a stock from an exchange, usually for failing listing standards or for financial distress. It is not the same as the company disappearing, but for investors the decisive part is that the market where you could buy and sell it is gone.

The damage comes from losing liquidity. Delisted shares must be traded privately off-exchange, buyers are hard to find, and prices stop being reliably set. You lose even the ability to cut your losses on demand.

It rarely happens overnight, though. Warning signs come first. Capital impairment, revenue below the minimum threshold, an adverse or disclaimed audit opinion, or embezzlement can put a company on a watch list, and failure to remedy moves it toward delisting. Before removal there is usually a final trading window, during which the price typically swings wildly.

Prevention is the only real defense: check the balance sheet for capital impairment, read the auditor's opinion, and never ignore a watch-list filing. Cheap-looking stocks in particular are often cheap for a reason. It also helps to distinguish a voluntary delisting, where a major shareholder buys out the float and takes the company private, from a forced removal for distress. They are entirely different events.