【中文版】

保证金是什么？保证金是指在购买股票、期货等金融产品时，投资者需要按照规定的比例向证券公司或期货公司缴纳一定数量的资金，以保证其履约能力的措施。简单来说，保证金就是一种保证投资者能够履行合约义务的措施。

保证金的目的是为了防止投资者违约，从而保证合约的履行。如果投资者缴纳的保证金不足，那么他们可能会面临被强制平仓的风险。因此，投资者在参与金融市场时需要认真了解保证金的含义和缴纳方式，以便更好地规避风险。

在金融市场中，保证金可以分为多种形式。例如，股票交易中的保证金是按照股票价格的固定比例计算的，而期货交易中的保证金则是根据期货合约的价值和交易所规定的比例来计算的。此外，还有一些金融衍生品也需要缴纳保证金。

总的来说，保证金是金融市场中的一项重要措施，它能够保障投资者和市场的稳定。投资者应该认真了解保证金的含义和缴纳方式，以便更好地参与金融市场。

【英文版】

What is margin? Margin refers to the method in which investors are required to deposit a certain amount of capital with the securities company or futures company in the process of purchasing financial products such as stocks, futures, etc. to ensure their ability to fulfill their contractual obligations. In short, margin is a measure to ensure that investors can fulfill their contract obligations.

The purpose of margin is to prevent investors from defaulting and thus ensure the fulfillment of the contract. If the investors' margin deposit is insufficient, they may face the risk of being forcibly closed out. Therefore, when participating in the financial market, investors need to carefully understand the meaning and payment methods of margin deposit to better avoid risks.

In the financial market, margin can be divided into various forms. For example, in stock trading, margin is calculated based on a fixed proportion of the stock price, while in futures trading, margin is calculated based on the value of the futures contract and the proportion specified by the exchange. In addition, some financial derivatives also require margin deposits.

In general, margin is an important measure in the financial market that can protect investors and market stability. Investors should carefully understand the meaning and payment methods of margin to better participate in the financial market.