[請益] Firstrade的cash call通知

一早收到Firstrade的cash call通知，整個一頭霧水。我近期也沒有任何操作，也沒有融資
或槓桿，但FT通知我有469的cash call...有人收過樣的信件嗎？這會強制清算個股或是ETF
嗎？
（已經先寫信給客服等回覆）


The recent purchase of securities or fees assessed in your Firstrade account has
created a cash call. If this call is not met within the time required by Regula
tion T, per Federal Reserve Board, portions of your portfolio may be sold to cov
er this cash call.


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