Yes they do or MLI or MSI puts their robot to do arbitrage and even it out, usually they run it up in canada to be able to sell in sweden and vice versa so one could argue they are skimming some with the robots. Regards.
I find the rubberband theory to be rather exellent, With a resonable open mind and an understanding of what changes the parameters for the rubberbands resiliency its an unparalelled levelmetric of what to expect at present time. Of course one needs to adjust it after all major events like reports contracts listings dividends and anything else affecting risk or earnings :) Regards.
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