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仓位大小计算器

计算在触发止损时,多少股可将您的亏损控制在账户的固定百分比以内。所有计算均在您的浏览器中完成——不会发送到任何地方。

买入股数
20
风险金额
$100.00
每股风险
$5.00
仓位价值
$2,000.00
占账户比例
20.0%

控制仓位规模并不能消除亏损风险。

计算方式

shares = (account x risk%) / (entry - stop)
account
total account equity
risk%
share of equity you accept losing on this position
entry - stop
loss per share if the stop is hit

算例

A $25,000 account risking 1% puts $250 at risk. Entering at $48.00 with a stop at $45.00 is $3.00 of risk per share. $250 / $3.00 = 83 shares, costing $3,984 to hold.

这里用到的术语

止损
投资者为限制损失而计划退出的预设价格。这是用于风险管理的参考水平,并非投资建议。

常见问题

How do you calculate position size?
Divide the amount you are willing to risk by the distance between your entry price and your stop-loss. If you risk $500 and your stop is $2 below entry, the position is 250 shares. The stop distance — not the account size — is what sets the share count.
What percentage should I risk per trade?
There is no universally correct number, and this is a personal decision rather than something a calculator can answer. Many published risk-management frameworks discuss 1-2% of account equity per position; the right figure depends on your circumstances, and you should consider speaking to a licensed financial adviser.
Does position size change if I move my stop-loss?
Yes, and that is the point. A wider stop means a larger loss per share, so holding your dollar risk constant requires fewer shares. A tighter stop allows more shares for the same risk.

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本工具仅对您输入的数字进行计算。它仅供信息和教育用途,不构成投资、税务或财务建议,也不是买入、卖出或持有任何证券的推荐。测算是假设,而非预测。请务必自行尽职调查。

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