Pre release vs actual Bombardier got everyone pumped on pre release and all analysts got excited with rosy numbers.
First, never believe the analysts, most of the time they don't know which hole to speak from. They are just as informed as you are, and work for someone else. If they were any good then they would be buying and selling getting rich for themselves. When was the last time you saw big rush to buy or sell based on analysts report.
Second, Bombardier backlog, after market sales and airplane deliveries will all be higher in 2023 then last year. But because the earlier target was better then the new revised one from today, we have alot of people who took this as negative or time to get out. Bombardier is now under promises and over delivering. As an example look at delivery this year compared to last year.
Third, know and set your own entry and exit targets. That doesn't mean you will buy at x price and sell at y price. Figure out do's and don't or your own red line/trigger point to sell. If debt is going up to x amount or backlog shrinking or cash flow burn etc. What are your own criteria. Everyone has different threshold. That's why some sell at x price and some buy at that same x price. Same stock but different entry and exit point.
Today wasn't a short attack as some yahoo's on this board came to brag. Today most who sold were transitional investors or short term holders cashing out because they made their quick cash and were hoping to make few more after q4 release. They came made some money are gone. Like every trade, today some got out of Bombardier but that many also got in. Q4 results today are 1/3 quarter old. Most of those numbers have changed.
For me backlog is important because it provides long term revenue stability, next is debt is reduction, and third is aftermarket sales increase. So for me all three are going in the right direction and no need to panic and sell.