It seems they employ an incredibly unethical widening spread strategy, which defies all logic. At certain times, they generate false fluctuations in specific trading instruments (I have detailed analytical evidence to support this claim). For instance, every night, they widen the buy-sell prices of natural gas from 7 units (already a relatively high spread) to 10, 20, or even 30 units! This virtually eliminates any meaningful fluctuation, making it nearly impossible to profit, with swings as drastic as 40%. No other broker I know of engages in such practices!