It is really difficult to control the risk of opening a position only accor

It is really difficult to control the risk of opening a position only according to the order signal, opening a position with one order and adding a position by Martin. Is there any expert to explain? The disadvantage of opening a position only based on the opening signal and closing the position with overall profit .....

要控制只开仓的风险真的很难....

要配备马丁救星

这个问题有些“空洞”，题目有点儿大。

任何好的交易系统，都是可以根据指标信号进出场的。关键在于“是什么指标信号？”。赚钱的人不足5%，那么就意味着，95%的人都常见且会用的指标信号绝大多数时候都是理论上好看、实盘上偶尔管用却经常骗人的。所以交易的反人性的特点，就在于不用去公开讨论什么“指标信号”，因为“一讨论就错”。更多地在指标信号方面应该保持“个性”，只能去给一些启发式的思路就已经够了。

所谓“一次一单”的情况，我遇到的基本都是“瞎胡闹”。因为行情变化是概率的，而且交易的往往40%的利润都被你的平台赚走了。平台甚至用所谓“返佣”这种欺骗手段来薅羊毛，让交易者更难以快速将订单出场（因为没有赚够额外的手续费，直接出场就意味着数量巨大的隐形亏损）。那么要克服各种佣金、手续费、库存费、点差、滑点、卡盘等等影响，交易就需要从细微处着手，持有更多“独立的仓位”，并且成组出场，个人交易者的“综合规划能力”超过平台对你的认知，才可能平滑掉大部分平台的剥削。

有的人“吹牛b”说“我把重仓放那里，设好极小的（只有一个点差跳动的）止损，不设止盈或者设50倍止盈，那么我就会经常拿到大利润了“。这其实对99%的人而言“是谎言”。实盘时不是说“数据行情遇到震荡”了，而是外汇的大行情本来就不能想当然地以国内期货那种个别人坐庄的炒作思路来套，外汇大行情通常都是“多空双杀”的走法，无限次地打掉想当然者的止损位。如果你“实际上没有投入什么资金，而只拿一点儿钱玩儿”，甚至像某些“培训班”那种保本方式（后台另外一个人在其它账户上反向交易），那么也许可以长期来赌。但是那些重仓进场的人，想靠复制10几年前道听途说还有些用的手法获利的“交易成本非常高”，仅频繁地止损就够“倾家荡产”了。

所以所谓“控制风险”的说法，对许多人来说，兜兜转转寻找圣杯的思路没有改变，越想控制风险则越是更加频繁地连续止损，被人不断洗脑。要改变这一切，根本的打开思路的办法，就是不要去纠结“理论”。真正赚钱的方法来自于稳定盈利的实践，而非理论推导，往往是“我这样做就是100%不断地每月、每周都在赚钱的”这个结论，才支持一个人去坚持正确地交易。而不是靠忽悠人的文章来支持一个人交易。“控制风险”就在于你知道金融交易是一个“人性本恶”的哲学事情，它不是自然科学，而是社会博弈，是欺骗与反欺骗方面不断更新手法的。

Certainly. One of the main drawbacks of solely relying on order signals to open positions and closing them with overall profits is that it can lead to overtrading. Overtrading occurs when a trader opens too many positions, which can increase the risk of losses and reduce overall profitability. This is because the trader may be tempted to keep opening positions based on order signals, even when the market conditions are not favorable, leading to losses.

Another drawback is that it can be difficult to accurately predict market movements based solely on order signals. While technical analysis can be useful in identifying potential trends, it is not foolproof, and unexpected events can cause sudden market movements that cannot be predicted by technical analysis alone. This can result in losses if a trader is solely relying on order signals to make trading decisions.

Finally, solely relying on order signals to open and close positions can lead to missed opportunities. The market is constantly changing, and there may be times when a trader can profit from a position that they would not have opened based solely on order signals. By only relying on order signals, a trader may miss out on these opportunities and potentially reduce their overall profitability.

In summary, while order signals can be useful in foreign exchange trading, relying solely on them to open and close positions can lead to overtrading, inaccurate predictions, and missed opportunities. Traders should use a combination of technical analysis, market knowledge, and risk management strategies to make informed trading decisions.

这么厉害，完全没看懂

You should ask the question on mq5