Opening

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Opening

The period at the beginning of the trading session officially designated by an exchange, during which all transactions are considered made "at the opening." Related: Close.

Opening

1. The beginning of a trading session on an exchange.

2. The first price of a security at the beginning of a trading day. In this sense, the opening is also called the opening price.

opening

1. The beginning of a trading session.
2. The initial price at which a security trades for the day. Also called opening price.

Opening.

The first transaction in each security or commodity when trading begins for the day occurs at what's known as its opening, or opening price.

Sometimes the opening price on one day is the same as the closing price the night before. But that's not always the case, especially with stocks or contracts that are traded in after-hours markets or when other factors affect the markets when the stock or commodity is not trading.

The opening also refers to the time that the market opens for trading or the time a particular instrument begins trading. For example, New York Stock Exchange (NYSE) opens at 9:30 ET. The first transaction in a single security may be at that time or at a later time.

References in classic literature ?
A backward glance convinced me that to return by the way I had come would be more hazardous than to continue across the plateau, so, putting spurs to my poor beast, I made a dash for the opening to the pass which I could distinguish on the far side of the table land.
Through these frowning walls and dark window openings it was not likely that my voice could penetrate.
But his setting rays darted along the openings of the mountain he was on, and lighted the shining covering of the birches, until their smooth and glossy coats nearly rivalled the mountain sides in color.
You who have given that inclination to the openings of your embrasures, by means of which you so effectively protect the men who serve the guns?
We searched the corpse very carefully for the usual openings through which the entrails are extracted, but, to our surprise, we could discover none.
The coat-shirt not yet introduced, a man had to slip the old-fashioned kind over his head, drag it down past his shoulders and poke blindly for the sleeve openings.
Of these the latter may have afforded a finer field for an acute and original observer, but the other was so strange in its inception and so dramatic in its details that it may be the more worthy of being placed upon record, even if it gave my friend fewer openings for those deductive methods of reasoning by which he achieved such remarkable results.
At last (my watch showed that it was one in the morning) I saw the gleam of water amid the openings of the jungle, and ten minutes later I was among the reeds upon the borders of the central lake.
I don't care a button myself for Paul's Penny, or such things," he admitted in answer to some antiquarian openings from the clergyman who was slightly acquainted with him, "but I wear the King's coat, you know, and it's a serious thing when the King's uncle leaves a thing here with his own hands under my charge.
As the young man walked toward it the upper windows drew a black arcade along the side wall of the building, but from the lower openings, on the side where the ground sloped steeply down to the Corbury road, the light shot its long bars, illuminating many fresh furrows in the track leading to the basement door, and showing, under an adjoining shed, a line of sleighs with heavily blanketed horses.
His good friend Jarndyce and some other of his good friends then helped him, in quicker or slower succession, to several openings in life, but to no purpose, for he must confess to two of the oldest infirmities in the world: one was that he had no idea of time, the other that he had no idea of money.
Every five minutes, by removing some of the crowd, gave greater openings for her charms.