There was never anything to contest once GE acquired 90% of the shares. Under Swedish law they had the right to invoke the squeeze out procedure.
The arbitration process was where you could have had input as a minority shareholder to present evidence of why the offer should be different to but remember that 345 SEK is already a significant increase on GEs original offer so (in my opinion) I don't think the panel was going to have evidence that the offer should be increased - future growth unfortunately isn't a really consideration. To complicate matters anyone holding AMAVF wasn't holding the underlying ARCM.ST shares so we're effectively invisible in the process - we get carried along with the flow.
1) FX - yes but that's the risk anyone takes when they invest in a currency that isn't their home currency. If you want to hear a sob story I get paid in GBP! 2) Fair is what people are willing to accept and most people who sold in the 90% that GE acquired before the squeeze out accepted less than 345 SEK. Only Elliot and a few others really got 345 SEK. If the general public/market truly believed that the price should have been higher then why did the price not sky rocket during & after GE announced they were interested in ARCAM?
Listen, 18-24 months ago I gambled that Elliot would force GE to stay honest and that the valuation of ARCAM would continue to increase, after Elliot accepted I gambled again that the price may (by some miracle in hindsight) increase in arbitration and finally that I gambled the SEK would go up against USD. I'm at least consistent in that I failed 3 out of 3 times.