Disconnect There is a discount with bombardier results/performance and how the stock price behaves. We used to see this for years. Yesterday's was one of them and most extreme as bombardier had a solid quarter and are very clear on their plan for future and in track to deliver yearly target, yet sp dropped.
Yesterday's trading started in green and went red after. Buyers saw potential and were buying in the green, then you had sellers who wanted out and taking profit out. SP drop from two days ago probably fueled the seller to take profit out as the early morning green wasn't going up fast and much higher on good results. Then you had the snowball effect.
There is no stock manipulations, not a short attack. This is just regular folks who are trading and making money, but some thinking emotionally.