I don't understand at all how this IRA account stuff fits in with the dude having POA over the account and how this relates to where the fault lies, but I do have a question about margin. If each of these accounts is really the responsibility of the owner, then does this mean that each account of the 290 clients had to have the same trades? Does this mean that each account would have several naked shorts in it? If the margin is incredibly high to take on these positions, does this mean that each of these accounts had that margin?
It seems odd to me that each of these accounts was separate, but if they were, how does the options dude place trades in each account? And if it isn't like this, if there aren't individual trades in each account, then how can the account holder be held liable for losses if the trades were in some way "pooled" from some other main trading account?