Did you guys even read what I was replying to? I was replying to
"For example, a trader at Bright could have 500 limit orders out pre-market on their opening order strategy that could "theoretically" tie up 10 million in capital for a trader with just 25k or 50k in their account."
Yes, you can submit LOO buy orders that could theoretically amount to 30:1 or more in leverage. When violating ca. 6:1 with PM, IB will liquidate in the first 10 minutes.
An outstanding LOO order doesn't lower the current buying power.
Are you sure about that? I may be wrong, but I would bet dollars to doughnuts that no broker in the world is going to let you stack limits pre-market past your buying power. How would they manage that risk if a plane hit a building? Every retail broker I have ever been affiliated with including futures btw, removes the cash from your buying power the second you have an outstanding limit order. As they should. IB is probably the most liberal and sophisticated broker out there so I would be curious if you could get them to respond to that. And btw, think about this for a minute, how would IB even go about calculating what your intra-day PM should be on orders that "could" be filled since they don't know what will get filled and at what quantity and at what price. Think about that for a second.