Many people have been holding since January thinking the next upcoming November would be a boom. Here we are - it's November and no boom yet.
Many people might start panic selling within the next 60 days and this could drive the price down to $100 or lower.
Many people were expecting btc to increase exponentially this year. Not only does that not appear to be happening, but it looks like the price is going to end up much lower than it was in the beginning of the year. The people who were advocating that you can't lose if you buy btc and hold for a year for guaranteed profits have no legs to stand on. If we do break the old ATH of $266, then I think it's quite possible to see a big crash rather than the show bleeding of the price that we've been witnessing.