Up over 100% since August, one might say it already has. It seems no one will recognize that the price increase is due to the upcoming halving unless it goes to the moon the day before the halving. If you're expecting the price to double in day, or waiting for any similarly drastic price increase in a short period of time, you're not being realistic. We've already seen a HUGE increase (again, over 100% in 6 months), and everyone keeps saying "I wonder what the halving is going to do to the price" or "I wonder when the price is going to increase due to the halving."
It has happened. It may continue to happen, but there's a fair chance you've already missed most or all of it.