I don't believe the loss is just $150 million, it's larger than that. Even if the average account size is $1 million, for 290 accounts, the loss is still $290 million. In the video, he said all of the accounts are wiped out. FC Stone has liquidated all of the positions. The loss is definitely larger than $150 million unless he was not investing all of their money deposited with him like you said but then if that's the case, there shouldn't be debit balances. Where did the debit balance come from? Something does not add up. I guess we will know in the upcoming court documents.
I still stand by my estimate that the loss is lot larger than the $150 million that optionsellers.com's manager has given out. According to this twitter message, this woman and her husband lost $1 million, their entire life saving. If this is true, this is the typical account or average account size, then the loss is at least $290 million. I wonder is that $93K the management fees or their debit balance.