Use caution. Even a broken clock is right twice a day. It's one thing to bad mouth stocks (in mass). It's a different case to back it up with a position.
In the specific case of Arcam, just compare the price to sales to any other 3D play. You find that Arcam's is higher than the others. It has fallen in price because it is expensive (due to high expectations as well as the sector taking a hit), not because it is ignored by institutions.
I have no problem with bears. They are valuable when it comes to analyzing stocks. There are plenty of legitimate and constructive arguments for being bearish. No need to make things up. It's but a distraction to generate fear.
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