Sort:  

It was a 20% drop in 24 hours.
So no I guess it wasn't 22%.

I hadn't realized it went over 20%, that is interesting. There is no guarantee how long the correction will last or how low it will go. Some only lasted a week or two while others lasted multiple weeks from peak to trough. Not a single correction in 2017 went more than 38% from peak to trough and they seemed to get shorter in duration the further along the rally went.