Long unwinding is a term used in trading to describe the sell of positions or securities that have been held for a longer time.
A long position is when you purchase a stock or other security in the hopes of seeing a rise in the near future.
Unwinding means selling or offloading your position.
It makes no difference whether you sell for a profit or a loss. Long unwinding is the term used to describe the process of leaving a long place.
Long unwinding occurs when traders believe a stock’s or security’s price is approaching its point of resistance, or when the bullish view on it has reached a saturation point.