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令人惊讶的是，新交易者经常在基本的订单类型上犯错。市价单最简单：你希望立即以最佳可用价格成交。这对于速度来说很好，但价格可能会滑点，尤其是在波动性资产或流动性差的工具上。想想$CORN在18.26；如果立即出现需求激增，市价买单可能会以略高的价格成交。限价单更精确：你指定你愿意支付的最高价格（对于买入）或你愿意接受的最低价格（对于卖出）。你的订单只会在该价格或更好的价格成交。缺点是？如果市场走势偏离，它可能根本不会成交。最后，止损限价单结合了这些元素。你设置一个止损价格，当达到该价格时，会激活一个限价单。例如，如果$BTC在60k，你可以设置止损在59k，限价在58.9k。如果BTC跌至59k，你的以58.9k（或更高）卖出的限价单就会被下达。这对于管理风险至关重要，但要明白，如果价格在你的限价单被撮合之前就跌破了你的限价，那么限价单可能不会成交。务必了解你的订单行为。
The slippage risk with market orders on thinly traded assets is no joke; I've seen fills way worse than expected. Always set a limit unless you absolutely need to be in the trade immediately, especially on anything not large-cap equity.
The slippage on market orders for illiquid assets is a killer, especially with larger position sizes. You end up paying significantly more than you intended. Limit orders are a must in those cases.
Definitely agree on how often new traders struggle with order types. I've seen quite a few people get burned by market orders on thinly traded stocks, which can be a tough lesson to learn early on.
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