How it works
Like the opening price, the closing price is determined using the itayose method, which matches all the orders outstanding up to that point at a single price.
Difference from, and importance relative to, the opening price
The closing price serves as the reference for calculating the day's change and as the basis for the following day's price-limit range, and it is treated as "the stock's price for the day" in most financial news and charts. Unlike the opening price (see related page), which is set at the start of trading, the closing price is set at the end.
