Even if a stock has fallen significantly (70-80%), it may continue to decline if fundamental aspects of the company, such as product issues, management, or underlying problems, have not changed or been resolved. Investors should look for fundamental changes before considering averaging in or taking a contra bet.
"always remember that if nothing has changed in the company even if the stock has corrected like 70-80% there are great chances that the stock might fall further, so before you think about averaging in that stock or before you think about taking a contra bet on that stock try to see if something has changed in the stock or not, try to to see whether the problem because of which the stock started to see the downfall whether some sort of solution is in picture for that stock or not, if it was about some problem in the product whether the there is some solution that has been found for that product or not if there was a problematic management whether these people are now being replaced or not"