Sell DDD and SSYS and buy XONE.
Xone is riding DDD's wave. Loser.
It might be free, but it's bad advice. DDD is much better play plus ARCAM is a much better spec. play as it's more profitable at 1/2 the market cap.
You're advice is worth what you're charing: nothing.
I agree with you.
a dumb move.