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sophialinlinlin · 2025年03月10日

保证金不够覆盖维持保证金难道不是应该加到Initial?

NO.PZ2024061801000103

问题如下:

A trader sells short 1,000 shares of Stock A, which is currently trading at $40 per share. A margin requirement of 140% applies as well as a maintenance margin of 125%. If the share price rises to $55, the amount of the margin call is closest to:

选项:

A.

$0.

B.

$1,000.

C.

$13,000.

D.

$15,000.

解释:

C 做空1,000股交易价格为$40的A股票产生$40,000。基于140%的保证金要求,需要追加$16,000的保证金(= 40% × $40,000),总计$56,000。如果股票价格上涨到$55,那么做空的股票价值为$55,000,维持保证金变为$68,750(= 1.25 × $55,000)。初始保证金$56,000不足以覆盖维持保证金,这意味着有$12,750的追加保证金要求(= $68,750 – $56,000)。

如题,现在因为跌太猛,所以低于Maintain 所需要的Margin,那么按照惯例应该要增加回initial才对啊,即应该是55*1.4?

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NO.PZ2024061801000103 问题如下 A trar sells short 1,000 shares of Stowhiis currently trang $40 per share. A margin requirement of 140% applies well a maintenanmargin of 125%. If the share pririses to $55, the amount of the margin call is closest to: A.$0. $1,000. C.$13,000. $15,000. C 做空1,000股交易价格为$40的A股票产生$40,000。基于140%的保证金要求,需要追加$16,000的保证金(= 40% × $40,000),总计$56,000。如果股票价格上涨到$55,那么做空的股票价值为$55,000,维持保证金变为$68,750(= 1.25 × $55,000)。初始保证金$56,000不足以覆盖维持保证金,这意味着有$12,750的追加保证金要求(= $68,750 – $56,000)。 NO.PZ2024061801000103问题如下A trar sells short 1,000 shares of Stowhiis currently trang $40 per share. A margin requirement of 140% applies well a maintenanmargin of 125%. If the share pririses to $55, the amount of the margin call is closest to:A.$0.B.$1,000.C.$13,000.$15,000.C 做空1,000股交易价格为$40的A股票产生$40,000。基于140%的保证金要求,需要追加$16,000的保证金(= 40% × $40,000),总计$56,000。如果股票价格上涨到$55,那么做空的股票价值为$55,000,维持保证金变为$68,750(= 1.25 × $55,000)。初始保证金$56,000不足以覆盖维持保证金,这意味着有$12,750的追加保证金要求(= $68,750 – $56,000)。老师好,从解析看,维持保证金跟随股价的变化而变动,初始保证金不变,是这样理解不。之前一直以为都是固定的数值。

2025-03-11 14:37 1 · 回答