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For instance, it opens at the start of the day and closes at the end of the day. Overall, these terms were more useful in traditional financial markets as there are fixed hours of the day in which trading occurs.</p>\n<p>Once implemented, <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-blockchain/">blockchain and its settings are difficult to change. This is because each modification must be consented to by all network <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-node/">nodes and members thus creating consensus, which isn't always simple. As a result, blockchain platforms and <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-are-decentralized-applications-dapps/">decentralized apps (dApps)</strong></strong></a> are often only modifiable via a&nbsp;<a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-hard-fork-blockchain/">hard fork</strong></a>, which requires establishing a new chain.</p>\n<p>Moreover, hard forks are considered to be risky for users as well as inconvenient. In other words, it&rsquo;s not useful for projects to hard fork every time they require to carry out adjustments and add functionalities.&nbsp;</p>\n<p>Therefore, blockchain programming depends mostly on the open/close concept, which indicates leaving room for increasing abilities without taking drastic measures.</p>\n<p>When it comes to software development, open/close describes the programming approach of extending software portions, without permitting any changes to the source code.&nbsp;</p>\n<p>The code itself allows for flexibility while limiting the ability to modify its essential components. <strong>This avoids the need to totally rewrite the software whenever new standards emerge</strong>. Bertrand Meyer initially articulated it, and it is part of the SOLID concept of object-oriented programming. Because of the immutability of blockchain and crypto projects, open/close is very critical in their architecture.</p>","level":"easy","meta_title":"What is Open/Close? 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Similar to <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-limit-order/">limit and <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-stop-loss-order/">stop-loss orders, an OCO order is a sort of <strong>conditional order</strong>, in which sell or purchase actions are automatically carried out when a trading price threshold is met or surpassed. One order is immediately canceled when the stop or limit price is reached while the other order is fulfilled. Besides, on the majority of the trading platforms, several conditional orders can be placed.</p>\n<p>An OCO order enables traders to function efficiently in a dynamic market. They are able to be utilized to <strong>define a range that increased earnings while reducing losses</strong>. If a trader is attempting to trade <a href=https://www.bitdegree.org/"https://www.bitdegree.org/crypto/buy-bitcoin-btc/">Bitcoin (BTC)</strong></a> during a particularly volatile period, they can put two orders, one to sell at an anticipated high price and one to reduce losses if the price falls below a specified threshold.&nbsp;</p>\n<p>For example, if Bitcoin is now priced at <strong>$18,000,</strong> a user can put a high sell order at $19,000 and a stop-loss order at <strong>$17,000</strong> if the market goes in the other way. The same can be said for buy orders.</p>\n<p>However, users must acknowledge the fact that OCO orders need skillful implementation, as well as a very good knowledge of the trading techniques and the market overall.</p>\n<p>Another example would be if an investor owns 1,000 shares of a volatile stock trading at $10 per share. The investor believes that this stock will fluctuate in a broad range in the near future and has set a <strong>price objective of $13</strong>. Though they do not wish to lose more than $2 per share in order to manage the risk. Therefore, the investor can execute an OCO order, which would include a stop-loss order to sell 1,000 shares at $8 and a simultaneous limit order to sell 1,000 shares at $13, whichever comes first.</p>\n<p>Note that an OCO usually has <strong>one stop-loss order and one</strong> limit order. Limit orders are utilized to purchase or sell shares of an asset when a particular limit is attained on the market.&nbsp;</p>\n<p>Stop orders are also used to <strong>set limitations but in the other way</strong>. Their execution can be done in two ways &ndash; selling an asset if it begins to fall in order to stop losses, or purchasing an asset if it <strong>begins to rise</strong> in order to profit from a run.</p>","level":"medium","meta_title":"What does One Cancels the Other Order (OCO) mean? 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Crypto Terms: Letter O

What is Order Book?

Order Book MEANING:
Order Book - a physical or digital documentation used to track the buy-sell activity of an asset.
Easy
1 minute

Let's find out Order Book meaning, definition in crypto, what is Order Book, and all other detailed facts.

An order book is a physical or electronic document used to record the buy and sell history of an asset on a particular trading platform. While the concept of order books precedes digital technology, most platforms now use electronic order books that use an automatic matching engine to go through the list of buy and sell orders and fulfill them.

Order books contain different information regarding the trading of the asset. This includes the list of buyers and sellers, and a section for bidding and asking. Asking refers to the sell requests, while bidding represents the buy orders.

In the traditional structure, all bids are placed on the left side, while the asks are noted on the right. Bids are usually represented by using green, and asks are marked in red.

The interactions between the buyers and sellers can be logged in the order book using a number of visualization tools, such as line charts or tables. Japanese candlestick charting can be used alongside an order book to observe market changes and make well-informed trading decisions.

Order books typically record limit orders – orders that use prices set by the trader. If an order uses the current market prices for the trade, it is considered to be a market order.

The highest bid prices and the lowest ask prices are written on top of the order book. The difference between the highest bid and the lowest ask is known as the bid-ask spread, which is used to indicate the strength of supply and demand.