CSL has been sold down heavily after Scott Morrison made the news about the vaccine recently.

But if positive news comes back in around the vaccine, there is potential for a rebound back to the top of the recent range high.

It is currently sitting on suport and showing bullish divergence, with the potential to head back towards the $305 mark.

There are a number of zones to watch out for as well as uncertainty around vaccines. So this isn't a trade for the faint hearted.

If news is good and the market starts gapping up, you could look to apply a gapping exit strategy.