Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!
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Here are some ways to avoid it.
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switch to cash account (does not apply to Alpaca since all Alpaca accounts are marginal accounts and cannot be turned off)
have more than $25k in the account
So, the only way to solve the issue in Alpaca is to have more than $25k in your portfolio.