Do these brokers put in stop losses for their clients to prevent them from going negative NAV? Or is it the usual margin call? When does the broker react to close client positions? $500 is skating very very close to the edge. Its very easy, especially with people holding a few contracts for it to move $500 on a gap.AMP/Cannon/Mirus etc. will all give out $500 margins - Unless, in my opinion, you are trading 50/100 lots, every trader should use the discount brokers.
And I am against overnight holds esp. on ES if his goal is growing a trading account. True on risking but losing $5K to start is really an education to the market. We've all been there ..... its part of the process.
Sometimes trading opportunities actually happen overnight. For example, last year swing shorting the ES on momentum, the ES dropped I think down to 1765 around december, but only in the overnight trading hour sessions. It then rallied HARD and went positive ever since. So those shorting the ES could have got out at a profit that is only afforded to you during overnight trading.
I think a guy with $5K account should try to double that money using safer conventional methods first, before even considering playing beyond their means with futures leveraging to the hilt and skating on the edge like that. But to each their own. Its like how people max out a credit card and make minimum interest payments, or maybe miss payments. Not what I would recommend.