To add some points from my limited understanding. 1. for this...

To add some points from my limited understanding.
1. for this type of arbitrage trading to work without people being screwed over, there needs to be a broker at this end who will secure and make good the frankfurt buy/sells. Possibly TCs?
2. Much of the action in frankfurt is from stock that is already held there. ie the same stock being recycled (for now).
3. The price we see in frankfurt isn't necessarily the last trade price but some algorithm based on last trade and bid/offer price. Yesterday was a case in point. Knl was up based on the last trade but ended the day down without any further trades based on a lower bid price.

My view is that when the real action starts on KNL the frankfurt exchange listing will be shown to be a master stroke by Mr Spinks. Until then its not something that will impact the ASX action.