Nas100- Where to sell?

There have been 3 very bad days for Nas100 and indices across the Globe with, in the Nas100 case, a drop of around 1000 points and a significant break under 13k important support.
Now the index is in a normal rebound and this can offer bears a good opportunity to sell at higher prices.
In my opinion, the sell zone is between 12750 and 13k and only above 13.300 would put a pause in this bearish scenario.