Closing Price

The closing price is the price of a tradable instrument at the time the market closes and is officially designated as the 'close'. On the London Stock Exchange, for shares traded on the automated SETS platform, the closing price is the last automatic trade price, or the uncrossing trade price at which orders execute during an auction, or a Volume Weighted Average Price (VWAP); for SEAQ, SEATS and AIM securities the closing price is the best bid, offer and mid price calculated from market maker quotes at the end of the mandatory quote period.