exchange-traded funds (ETFs)</strong></a>, amongst other things.&nbsp;The regulations that govern options trading are determined by the style of the option.</p>\n<p>Buy and sell activities are denoted as <strong>call and put in the options</strong> space. A call signal indicates that an option holder can buy an asset at a defined price and time. However, put and call option methods work in polar opposite ways.</p>\n<p>Besides, it should be noted that options are traded in the options market. Even though these financial products carry a higher amount of risk than <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-spot-trading/">spot trading</strong></a>, they have a number of benefits.</p>\n<p>For example, they can assist investors in properly deploying assets in order to maximize their profits.&nbsp;Also, because of their <strong>lower financial commitment</strong>, they may be less hazardous than <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-are-futures/">futures or other forms of financial products. 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href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-smart-contract/">smart contract</strong></a> which leads to theft, system failure, and so on.</p>\n<p><a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-oracles/">Oracles are third-party service providers that offer blockchains with real-world or external information such as statistics, price fees,<strong> weather information</strong>, and so on. Price fees, however, are by far the most exploited oracle data since they enable attackers to take over millions of funds from DeFi platforms.</p>\n<p>As an example, the offender in the Harvest Finance attack was able to infiltrate its pools via a <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-flash-loan/">flash loan</strong></a><strong>&nbsp;</strong>using a type of oracle manipulation. Essentially, the hacker used a transaction to lower the value of USDC inside the Curve pool. The offender then entered the Harvest pool <strong>at the deflated price</strong>, returned USDC to its original price, reversed his transaction, and departed the pool at a much higher price.</p>\n<p>Overall, there are two distinct ways an oracle could collect price data. 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The mechanism distributes <strong>Merkle roots</strong> of the transactions that occur inside the rollup on a regular basis in order to refresh the \"state\" of the rollup on the key underlying chain.&nbsp;</p>\n<p>Before any changes are made to the state, <strong>a network of external validators holds the responsibility to ensure that the Merkle roots are accurate</strong>. If an anomaly occurs, the validator publishes a fraud-proof during the argument period, causing the system's configuration to be rolled back to its prior valid state.</p>\n<p>The major benefit of optimistic rollups over zero-knowledge alternatives is that they can back <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-smart-contract/">smart contracts</strong></a> in the same way that the underlying smart contract-enabled blockchain does. The rollup's native support for smart contracts implies that apps can be deployed considerably more easily, without the need for further programming.</p>\n<p>However, the biggest drawback, on the other hand, is that it takes longer for layer 2 users to be able to deposit their cash back to the underlying blockchain when compared to <a href=https://www.bitdegree.org/"/crypto/learn/crypto-terms/what-is-zero-knowledge-rollup/">zero-knowledge rollups</strong></a>. It's a result of the fact that an optimistic rollup must depend on validators to verify the Merkle roots for fraud before the state can be changed. Therefore, there must be enough time for validators to verify and challenge the layer 2 activity.</p>","level":"easy","meta_title":"What is Optimistic Rollup? Definition & Meaning | Crypto Wiki","meta_description":"Optimistic Rollup meaning: Optimistic Rollup - Optimistic rollups utilize off-chain processing to reliably record layer 2 transactions.","meta_keywords":null,"language":"en","created_at":"2022-03-24T14:43:32.000000Z","updated_at":"2022-09-20T12:14:17.000000Z","preview_url":"https://www.bitdegree.org/crypto/learn/crypto-terms/what-is-optimistic-rollup"},"currentChapter":"O","currentSection":"what-is-option","chapterTitle":"O","readingLevel":"easy"},"url":"/crypto/learn/crypto-terms/what-is-option","version":"cdd198d50cbe5c9c21c9329d7c096ffc"}" class="container-fluid d-flex crypto-book p-0">
Crypto Terms: Letter O

What is Option?

Option MEANING:
Option - a financial contract that allows its holder to purchase or sell an asset without making a commitment.
Easy
1 minute

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

An option is a type of financial contract that enables the holder to buy or sell a financial asset without committing to anything. Options have a fixed price (known as the strike price) and expiration date. They can be utilized to trade cryptocurrencies, indexes, and exchange-traded funds (ETFs), amongst other things. The regulations that govern options trading are determined by the style of the option.

Buy and sell activities are denoted as call and put in the options space. A call signal indicates that an option holder can buy an asset at a defined price and time. However, put and call option methods work in polar opposite ways.

Besides, it should be noted that options are traded in the options market. Even though these financial products carry a higher amount of risk than spot trading, they have a number of benefits.

For example, they can assist investors in properly deploying assets in order to maximize their profits. Also, because of their lower financial commitment, they may be less hazardous than futures or other forms of financial products. Besides, options are very adaptable, allowing for the construction of synthetics and, as a result, the expansion of investment opportunities.

There are two basic styles to choose from:

  • American
  • European

The distinction between the two is in how holders engage with the mechanism between the time of purchase and the point of expiration. American-styled options, for instance, allow holders to purchase or sell prior to the expiration date. European-styled options, on the other hand, solely permit holders to execute their rights on the expiration date.