No, it's your pet dog with a bondage ball in it's mouth. You know I have always believed this, much to your chagrin.
ACH fraud is huge and an ACH in and out within a day is a red flag. Wait three days or do a wire next time. https://www.fico.com/blogs/ach-fraud-rising-and-new-nacha-measure-leaves-gaps
I have to ask - why would you deposit funds with a broker one day and withdraw them the next? I'm not prying, I'm not asking why did you, just why would anyone.
%% Good tough question,@ first glance looks like fraud, may not be , but looks like red flag activity [Question 2] WHATs the exact meaning of ''madness of US based brokerages?? ''
I remember one scenario of blocked ACHs. a trader transferred $5,000 to their account, turned it to $50,000 same day and tried transferring the $5,000(The old check kiting) back because he had no funds. The broker froze his account till his family wired them $5,000 to hold for ten days.
%% MY old community bank used to fed wire in funds free to brokerage account . But we were never dumb enough to try to withdraw funds within 24 hours. EVEN on money/trades they know+/ that its good/ its still trade +2 to clear.