Viewing profile — mostlymeme

That's no the contract in which IBKR has lost money. These are: QM NYMEX, and WTI ICE. Both cash-settled.

IB asked for very low margin, $30 per contrat for long positions, normal is around $8000. Margin for futures is based on risk. They could perfectly thought that minimum price was 0…

They are cash-settled.

Yes

An efficient market that don't let traders operate? Did you even read the article? Futures contracts that CAN BECOME NEGATIVE don't let large leverage when price is near zero, that…