stock levels

Bynd missed earnings for about 600% and the stock is trading at about 120USD in the premarket. Is it a buy when market opens? Can it go any lower?

So around this time of year I always run PPC ads to try and cash in on the Xmas rush. But there's something I've noticed - very often, the product I'm promoting will run out of stock, and I'll end up sending traffic even though there's no chance of conversions. Does anyone have any advice on...