BY doing what they did, which violates FINRA Rules of 50% max margin requirements even, is all the "available cash in my account" effectively was absorbed up so any check(s) I had written there were no "cash funds" left and there were very much so at end of day Wednesday when all this transpired.... Thursday morning we saw this change occur with no notice.
Regardless, the margin requirement on any stock should not have any affect to another stock margin whether you sold it for a profit or other period !
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