请先看Investopedia的相关英文释义：

Proprietary trading refers to a financial firm or commercial bank that invests for direct market gain rather than earning commission dollars by trading on behalf of clients. Also known as "prop trading," this type of trading activity occurs when a financial firm chooses to profit from market activities rather than thin-margin commissions obtained through client trading activity. Proprietary trading may involve the trading of stocks, bonds, commodities, currencies, or other instruments.

Proprietary Trading（自营交易）是指金融机构或交易公司使用自有资金进行交易的一种策略。这些机构使用自己的资金进行交易，以赚取交易差价或利润。自营交易不同于代客交易，代客交易是指根据客户需求为客户进行交易。

自营交易是指大型金融机构，尤其是投资银行，用自有资金在金融市场进行交易。大型投资银行通常会指定一个部门，即自营部门，高级交易员投资公司的资金以获得额外的收入来源。

自营交易通常由专门的交易部门或交易团队进行，他们负责分析市场趋势，制定交易策略，并执行交易。这些交易可以涉及不同的金融产品，例如股票、债券、商品、外汇等。

自营交易在金融机构和交易公司中非常常见，因为它可以提供额外的利润来源，同时也可以帮助这些机构在交易市场上保持竞争力。自营交易还可以作为一种风险管理策略，通过对冲和套利来平衡投资组合。

然而，自营交易也面临一定的风险，例如市场波动、流动性风险等。因此，金融监管机构通常会制定相关规定，以确保自营交易不会对金融稳定性产生负面影响。

总之，自营交易是一种利润策略，可以帮助金融机构和交易公司赚取额外的利润，但也需要注意风险控制和监管合规。

双语例句：

1.

In addition to the risk control indicators mentioned above, the Risk Control Indicator Measures require us to comply with other requirements when we engage in proprietary trading and margin financing and securities lending businesses. We closely monitor all risk control indicators when conducting our proprietary trading and margin financing and securities lending businesses. During the Track Record Period, we had no incidents of non-compliance with these risk control indicators nor did we receive any warnings or become subject to any penalties imposed by the CSRC.

除上述风险控制指标外，《风险控制指标管理办法》要求我们在经营自营交易及融资融券业务时必须遵守其他规定。我们在进行自营业务及融资融券业务时严格监控所有风险控制指标。于往绩记录期间，我们并无与该等风险控制指标有关的任何违规事件，亦无遭中国证监会警告或受到任何处罚。

2.

Our proprietary trading business is subject to market volatility and our investment decisions, and has experienced substantial fluctuations during the Track Record Period.

我们的自营交易业务受限于市场波动和我们的投资决策，并于往绩记录期间经历大幅波动。