In the UK this is how a holder sells later at night on end of the economic year. They buy it right back next early morning to keep the portfolio going. It decreases fees.
UNITED KINGDOM term for the security trading rehearse in which the owner of a security sells it in the belated night at the end of the financial 12 months and, in a pre-arranged move with a brokerage, purchases it straight back early next early morning to keep up their original investment profile. Because the objective of the training is always to decrease capital-gains tax, tax authorities ordinarily keep a vital view on such activities.