When investing, its impossible to hit winners every time. You take risk, and the profit from a few winners should cover the losses of a greater number of losers. This is why investors agree to take risk. Arcam has never been a value investment. It was an investment in a company that had a slim chance at disrupting the world of manufacturing, and a large risk of failing and becoming absolutely worthless.
What im saying is; I anticipate a FAT paycheck for having identified this amazing company and invested in it and carried considerable risk while the future was uncertain. It turned out great, and a huge company like GE has seen the potential and decided they have to have it. But many things could have gone wrong along the way. The tech could have proven to be less promising than competitors, etc. etc. When the risk is high, the same should go for the reward.
This paycheck has to be HUGE.